I may be buying my fiance an iPhone 4 to thank her for all she has done in the past few months. We both currently have iPhone3GSs which we love, but the HD video is VERY appealing. She's big into pictures, and her friend just got a FLIP that she likes, so I figured maybe the iPhone 4 would be a good alternative (given that her purse is already LOADED with junk!) But the concerns of reception issues and proximity sensors have me worried. I never buy Apple products right after launch, since they all tend to have quirks (as is true with every other product out there). But like I said, we're also happy with our 3GS phones. So, especially those who upgraded their 3GS, would you buy the iPhone 4 again? Can I safely buy it soon? Or should I wait a few weeks? And also, does the bumper case work with the dock? And does the iPhone 4 work with the TomTom car kit for iPhone 3gs?