Mining just got a LOT less profitable.

1 GH/s used to bring in 1.146 BTC per day. Now it brings 0.656 BTC/day.

BTC are currently trading for $15.50.

So a guy with a 1GH/s rig went from making $17.76/day to making $10.16/day.

Both figures are gross profit, not net profit (after electricity taken out). I used Deepbit's estimator for these income figures; for proportional pools, multiply figures by 1.07. For proportional pools with 0% fee, multiply by 1.10.

Daily income for 5830's is now 0.167 BTC, or $2.60.