The SunCoin is not just another cryptocoin.
-- suncoin unit will be equal to absorbed energy of a typical flower that convert sun radiation to life during a day -- 
So what's this crypto coin?
Is more a research activity in the years that will come to investigate the sociological impact of a cryptocoin and a software/hardware license (SunCoin / GPLx)
with the following (evolving)* features:
1) Put peace in the world of Software, let current proprietary software a smooth progress to Free Software, try to solve Bill Gates letter problem in each of its points. With a new Software Hardware License, the SunCoin/GPL able to pay revenue for paid programmers designer as well able to incorporate volunteer contribution on Software/Hardware projects/products.
2) Feed with capillary contribution Software projects, let work together paid programmers and volunteers with capillary assignment of payments auto-generated from Grid use. Let manage the assignment as a duty, responsibility and obligation of the project owner. 
3) Ensure the Freedom of Software Users. Defend them from abuse and Malicious Software.
4) Help Corporations who makes Free Specifications Hardware Projects under SunCoin/GPL License (like game consolle, PC, mobile devices or other) in replacing the hardware to clients or discover/design new hardware more cheaper and powerful. That users can pay with power bill (leaving 7/24, the devices connected to a grid) or in part with their power bill  . Let assign payments with capillarity for Hardware like for Software . Assign 50% of revenue for Grid contribution to Users, spendable (after 3 years of grid work) with new hardware, assign 40% or 20/20% to pay Free Hardware Designers and Sofware Programmers that contribute the projects (under Suncoin/GPLv3) of the running Hardware/Software systems connected to the Grid (payments feeded on weekly basis). List in the BIOS the hardware contribution, List in the applications the Sofware contributions to be paid with Grid work. Assign remaining 10% to be spent (after a year of Grid work) on Fundrising projects for Startup that design new Software or Hardware.
5) Apply a small transaction fee like 2% (with the benefict of purchase protection as Paypal do). Allowing the possibility to share this fee between the parts, or set as default to be shared 50% and 50%. Let the minimum amount of dispute to be set, to not disturb paid operators if the amount is not important, due to the variability value of the coin, this should be flexible(we know more features mean more security problems) at this stage, put more feature is not relevant to the feasibility that will be a postposed problem. Remove features before implementation - can be done - add them when ready to write the code or start the feasibility study can not be done or is even more problematic. I can say $50 or $100 USD can be a good common target to have a dispute, for sure you are not searching a dispute for 20$, it is more unconvenient of the time you need to spend for it, imagine the time of the operator that only earn a percentage of that disputed payment. So set this can be important and it should be tied to the common acepted value of the coin that can be variable in time, so should be variable too. A Bitcoin was good for a pizza, now you can purchase an e-bike with it or a PC.
Allow Moving of Capitals between Holding or International corporations at cheap rates (currently banks apply on some huge international movements 10% fee and specialized company, set up for this international scope, half of it).
Create Simple and cheap (like 1$) super secure hardware wallet for payments of goods and services, with the possibility to let pay VAT to preposed entity on end purchase in an automated and secure way.
6) Fight poverty, with establishment of a minimum survival salary for each person that use SunCoin paid with Transaction fees. It can be unconsistent at the beginning, only diffusion of SunCoin Cryptocurrency and the SunCoin GPL enforced (that allow where needed remuneration of work) licensing scheme can make it a real thing.
Is estimated that 7% on transaction fees is needed for a decent salary of all world citizens, but this much depends on the medium salary of each country. So 2% is fixed as a basis for now, this will make a decent salary not for all but for half of the world in case This cryptocurrency will be widely adopted in future. Even if this will constituite only a small bonus for many, this is already a good target.
7) Create a sub agent that can help in re-equilibration of problems due to Wars, Crisis, Country debts with conseguent cut of Social state and relative social expenses. A sufficient pre-mining, can constitute a collective treasure, the opposite of today situation with $50.000 debt on the head of every citizen. With States near to explode every few years and painful remedy that cut social-state or increased VAT paid for interests of something that can never be fixed.
8) Constituite a Distributed Authority Network  (centralized in nwiw virtual city) to strenght Justice. To apply a variable percentage of penalty and incentivations on wallets of person or legal entities. 
9) The costituition of a world computational infrastructure for Virtual Reality (worlds rendered in batch time with Global Illumination), cities or meeting places Where peoples can meet or work together. CPU grid used for scientific computation, both operated with unused lost CPU/GPU cycles of SunCoin/GPL Software/Hardware or Games users. Contituite a Grid that use conveniently mobile devices during charge time or Game Consolle during night time or use their lost CPU/GPU cycles.
10) Help to solve in part the enviromental problem, climate change for greenhouse effect, solve the communications barrier, help world citizens integration with Virtual Reality a Virtual Reality kind with resource  Use a Proper system to assign resources .
What is not SunCoin
Suncoin is not a container or a mirage of change to lock and control its users. The proposals are functional and not hidden, shown in this 10 points like the fingers of two open hands.
Early Feasibility study
Analysis of Proof of Stake Systems
Analysis of projects like
Liquid Feedback - Decision Making SW
* Nothing is fixed until we go to development stage.
 in case of partially or total re-use of code licensed with SunCoin/GPL, the obligation to give to the authors the right payments, allowing at least a workable margin for new branding, forks, modifications of code or new direction of one software project. Give instruments to assign resources with Liquid Feedback system when there is not a Company that govern this project.
 Mobile devices should be used from grid during the socket charging or night time (not operative time)
 In case Hardware have many designers (for each component or more than one for a component) let assign payment with micro capillarity, including contribution or improvements to VHDL code both from external or internal sources in case of promisquity, and collaborative designs.
 Modified Version of Free BIOS like Libreboot or coreboot can store a list of the hardware components set for a machine (at least its Free Hardware Components), with capillarity of informations on the parts, of who (in paid form) contributed the development of the Free Hardware parts, with his coin address and the percentage of contribution assigned in order to calculate payments to forward for each component and for the machine globally. On Operating System side or applications side, let deliver applications or software components (released with SunCoin/GPLx) with a list of percentages of paid contributions (as specified for the hardware). Let a daemon on the system forward the payments on a daily or weekly basis during not use time, not operative time or more convenient time. The remaining 50% of the grid-work revenue is collected each day for the user running the Hardware/Software system and collected in locked status in a sub-wallet until the amount get mature in 2-3-4 years (the time frame for hardware obsolescence) for the purchase of new hardware.
No payments in generally spendable way are done to the users. Firstly one user may prefer SunCoin/GPLx Hardware/Software for its Social means and importance to create a global distribuited super-computer obtained with the unused CPU/GPU cycles. For second instance to assure to him a new generation of Hardware after the times mature or the old hardware become obsolete. Who obtain energy from the Sun for example have no cost, or marginal costs in electricity. SunCoin embed a new way of thinking a PC or a Personal Mobile device, as a Personal-Public resource, public when not used. PGC (personal-grid-computer). Corporations that obtain energy from the sun or the wind or other low cost way, may think to SunCoin revenue as an economic way to have replaced their huge installed machines park with no cost or marginal costs.
-- EDIT: Suncoin Revenue for both Software/Hardware developers and Users (paid in new hardware), are paid in electricity cost from end-users. New breaktrough from ARM and NVIDIA have have shown i7 performance class CPU with medium/high class GPU that have the power consumption similar to LED bulbs (10W). So our initial evaulation of costs to run Suncoin SW or HW in Grid 24/7 or in charge time/off time is totally to be reviewed. Thank you NVIDIA. --
For all the rest of the users with no access to cheap renewable energy, is a way to ensure a saving chained to constant work of a PGC to be spent on something really of maximum importance that help their personal development, their communication power, their freedom and their life.
So users may have a general wallet with a locked saving sub-wallet connected to one or more PGC for hardware purchase.
 The right seeds to start will be provided, in a trusted, secure and special man's network that select and abilitate each other without number limits, upon saturation. This point may be hard to be accepted, and we are open to contribution, know the real reason of that. Main SunCoin supporters and contributors should have it clear. We can say only really "special" persons (the best we know in all sense) will be seeded to start the network. We have no back interest in this.
 Migrate in a - zero balance - those penalty as an incentivation to persons, groups or legal entities that promote society progress. Penalty will be applied to those that work against society progress or simply hurt other peoples in a legal or not legal way. It is in evaluation if this entity or a sub entity of this can act in controversy as peacemaker of disputed payments (as paypal do) earning a percentage of the disputed transaction if this consume time of the preposed operator. The same earnings in smaller percentages to remove and assign penalites/incentivations to strengt justice and helping or incentivate a re-equilibration process. To create a self sustaining system that affects and grants SunCoin users.
 due to development areas, we can not request high bandwidth to run the pre-calculated Virtual worlds, so we urge to set most of the job done on the grid and with downloadable (or physical media shareable) elements (dynamic global illumination worlds, meeting places, avatars, moving objects, avatars voice models, objects specifications, AI models), pushing at maximum clients for real time job (clients with low bandwith usage, that only need to transfer vectors, voice and little more). Give access to powerful computational resources on the grid to citizens that need to render with global illumination collaborative meeting places or virtual cities.
 Use a liquid feedback votation system to assign the resources for both Scientific computation Grid (prefer CPU time) and Virtual Worlds grid (assign GPU time).
 In History Currencies was created to Store a Value, Value represented in Gold, or more recently in history fossil fuel. After the economy becomed crazy this bond was cutted and peoples was hardly pressed in a strange game of false debt never synced between banks and corporations resulting in an economy (peoples) massacre.
It is not feasible today to store renewable energy or permit the exchange of this energy as a currency or things like coins, but battery research is very promising, we can hope that in future we can exchange energy,
sun, wind, sea waves or geotermal energy. Real energy instead of currency. Of course all this energy come from the Sun, no other sources. So this bond to a flower daily captured energy is not very functional now, mostly an example. But it can be functional in future after the research in naotechnology will led to a way to store renewable energy in matter in a way it will be archived persistently, ready to be exchanged or used in the grid. Maybe we should think more on this latest note.