Xcode allows you to live preview your iOS views using Xcode Previews, so you can see how the app appears as you're actively developing it. Here's how to use them. Xcode is Apple's development ...
I'm on the iOS developer program (as an individual), and the OS X one. I am running Lion, and upgraded my iPad to iOS5 beta just now. Turns out that the iPad isn't enabled as a developer device.
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