Right now, they are trading for about $0.8 per bitcoin: http://bitcoincharts.com/markets/
I got myself 0.05 BTC at the bit faucet. http://freebitcoins.appspot.com/
The idea seems pretty ingenious. It is interesting that people could decide that governments shouldn’t play a role in currency production. Currency is faith, and if government control creates a lack of faith, these types of currencies might be the future.