I love my iPhone (3GS) very much BUT the ability to use it to make calls or even check e-mail was often non existent when I was in New York City and Washington and Minneapolis this past week or two. Even at MSP Sunday morning I could not make a call. Has anyone heard any comments from ATT? I keep hoping these are just glitches / brief outages while they upgradek their network. I didn't try sending a text message which I should have because these can be critical and hopefully they would have gotten through.

Hopefully AT&T is aware of this and taking major corrective action.