Hi, I develop for iOS on an iPhone 4. I also have an old iPod touch stuck at iOS 3.0. Until now, I used to test my apps on my iPhone and iPod touch, covering all relevant iOS versions. With iOS 5 coming out, I'm left with only one device to test my apps on. The question is, should I update to iOS 5 (and no longer be able to test my apps' compability with iOS 4) or stay on iOS 4 and rely on the (unreliable) simulator to test my apps on iOS 5? Thanks.