Thanks for the detailed info. I put the iOS 4 goldmaster on my 3GS but don't remember have to register the device and the process went well. I'm being a bit premature as I don't have my iPad yet but I love iOS 4 and would like it on my iPad! I wonder will iPad apps support iOS 4 this was the only disappointment with having it on the iPhone early only the apple apps supported it.
what is the web site for the developer beta