Taking bitcoins only for US players but standard methods for the rest of the world is huge. It basically ensures that us players dont have their money stolen from the govt on the way to the poker site like full tilt. This is the first gambling site that takes standard money and bitcoin, which gives it great potential for getting a bunch of new people into bitcoin. There is also the fact that they're going to be able to cashout US player in bitcoins in a few hours, while every other site taking US players is taking 2+ weeks to send a check that might bounce. The potential for bitcoin in online gambling in the us is insane. Every bitcoin gambling site should be pretty happy right now knowing that in the next few months there could be a bunch of new bitcoin users who are gamblers showing up.