wouldn't the processing power be too insignificant to prevent counterfeiting and keep the crypto-currency secure...from my understanding the amount of processing power it takes to make a block is part of the security and keeps it rare if it were easy to make blocks it really would be no different than a video game currency people would trade for physical items that is all good when you want a game currency to play the game with but once the game is over its valueless unless you can sell your character and goods for cash you can spend outside the game...and even then it would lack liquidity which all currency must have!
I dont know maybe i'm way off base here but my technical knowledge is very limited and i'm more interested in bitcoin because i'm a fan of economics and the Austrian economics school of thought...
I have a question if i built miners with an APU's combined with GPU's would that increase a MH/s rate with any significance that would be cost effective