Okay I will admit it I got a little side tracked with Guild Wars 2 open beta last weekend. All I really got done over the week was some sketches of the characters and how the game would work:

Basically I am envisioning the phone being held sort of like controller and the player can aim using either both thumbs or in a position like this with a surface to rest it on (knees, a table).

As for Guild Wars 2 it was pretty good, could still use some polish but really not bad for a beta. I can see it coming out in a couple more months easy!