What is PoS? Proof of Stake. Your cryptos produce interest in wallet as long as you keep them. So you don't have to mine and so nature protected. http://en.wikipedia.org/wiki/Proof-of-stake
First year stake interest is 100%? It's too high. Yes,most Cryptos with PoS has little stake interest from 1% to 5%. But you should notice that Asiacoin has an annual PoS interest of 2% since Year 2. The design of first year stake interest is more like a continuance of PoW. It's real energy efficiency because interest under 5% is originally designed to prevent deflation.
What sould I do to start PoS mining? Have your wallet unlocked and online.
Is AC equipped with Kimoto Gravity Well / KGW? No, KGW is not needed because the difficulty retargets with every block.
How can I help? If you have any desire to be part of something big, feel free to send us a message with skills you possess and we would be happy to discuss any opportunity with the AsiaCoin Development team.