they just want to regulate the exchanges.
users/miners unaffected.
i say this because they only care about the virtual FIAT exchanges. this does not mean mining pools have to start taking identification. this does not mean bitcoin-QT needs to have a registered usernames linked to birth certificates and such. its still all about the digital (on computer database balances of FIAT) such as mtgox/btc-e/bitstampt/vircurex/etc
remember the last fincen report
equivalent value in real currency or act as a substitute for real currency.
this means a digital database balance of 10.00 which represents a withdrawal equivalence of a $10 bank note. it has nothing to do with 0.09 bitcoins, 145 bunny rabbit credits, 10000 world of warcraft gold. etc.