Finally Apple announced with iOS 4.1 for Developers, So if are a Developer head on and get it the first, Try it on your iPhone 4 and let us know by commenting about the iPhone 4 Reception Issues, Here’s the full PR from Apple after the jump, Meet there!
Apps built with iOS SDK 4.1 beta should only be tested on devices running iOS 4.1. Make sure to read the Xcode 3.2.4 Readme and the iOS SDK 4.1 beta Release Notes before installing and downloading these new releases.
Download iOS 4.1 for Developers
Stay tuned, More coming this Week!