I came to the party a little late with the iPhone 4 but I really love this phone. I've had it for a week and am pretty use to it now. I had a Blackberry Curve 8900 and 9700 for 2 years and I love everything about the iPhone. Coming from a Blackberry I actually like iOS's notification system and look very forward to iOS 5. I find AT&T to be excellent and call quality to be great!!! I also took a few journeys down Android will never go back. Was going to wait for the upcoming HTC Sensation and then decided to go iPhone after I realized high spec phones don't mean much on an OS that isn't polished. Just wanted to share my thoughts on such wonderful product. Nothing but iPhone in the future.