No, it reuses your hashes. It's free money.
Thanks. Was arguing over this on a different board.
There appears to be other online currencies starting up as well...Litecoin, Devcoin, IXCoin, I0Coin, Liquidcoin...will any of these work with merged mining as well?
BTC and NMC use a different algorythm to Litecoin, Devcoin, IXCoin, I0Coin, so they cannot be merge mined together
the scrypt based coins could be merge mined to work with the other scrypt based coins if the work was done to make it possible
No, Devcoin, IXCoin, and IOCoin can be merge mined - http://mmpool.bitparking.com offers those three plus Bitcoin and Namecoin.