How should I approach building a Universal iOS app that will include iOS 4 features, even though the iPad doesn't yet run iOS 4?

Question

I\'d like build a game for both the iPhone and iPad. As such, it would make sense to start this project from scratch as a universal app. However, iPhone and iPad currently run

Answer 1

A good post on this subject: http://cocoawithlove.com/2010/07/tips-tricks-for-conditional-ios3-ios32.html