I have the iPhone/ iPod touch version of Fieldrunners (among many other iPhone games) on my iPad running scaled up. I just updated Fieldrunners to the latest version that has GameCenter support and now the app crashes on startup. I've tried restarting the iPad, but still no luck. Is there anyone who can confirm/deny if this is just my copy of Fieldrunners or if gamecenter support updates will render an iPhone app broken on the iPad and whether we should avoid updating those apps? There are a few games with GameCenter support on the store already, including Flight Control and CroMag Rally. Larger list here. Obviously Game Center doesn't come to the iPad until 4.2, and I am aware some of these games have iPad specific versions you can buy separately, but I think this has wide implications if a lot of iPhone apps are suddenly going to stop working on the iPad.