I've used a TON of networks in my life. I had One2One back in the UK, Orange UK, Vodafone UK, VoiceStream in the US - > TMobile USA. I've had a cell phone longer than I can remember. But NO network comes close to the utter frustration that I experience with AT&T. Living in Seattle I drop so many calls that it's almost not worth making a long call via 3G, so I switch it off and use EDGE. I tried to make a call today THREE times to Customer Service to find out why my new iPhone 4 order for my sister-in-law looks like this. I mean how helpful is this? And they have no idea... nobody can help. GAH!!! AT&T is full of incompetent idiots who don't know anything about what they're doing, have the most unreliable network I've EVER used, and... just wow! Anyway, the second the iPhone goes to a different network, I'm gone. Gone, gone, gone.