Is it possible to play from the iPhone?

[doublec]

Yes, Apple seem convinced that third party apps are bad. Pity.

A ultra mobile PC could be the way to go. Maybe something like the oqo: http://www.dynamism.com/oqo2/main.shtml

But one cool thing about Poker on a mobile (especially the iphone) is the number of non-savvy poker players who might play the game via the device. Not too many oqo users out there, but lots of iphone users.