Not that I know of and even if I could I would never ever do it over 3g. Would have to be on wifi minimum. Last thing you want to do is lose a pot you're invested in due to a timeout issue. Also, i probably wouldn't want to play on the iphone without using my computer because i have other programs like pokertracker that helps track all kinds of stats of opponents i play against, very valuable information that goes into my decision making process.