The only reason I use AT&T is the iPhone, and I hate hate hate them. Their service is terrible where I work, terrible where I live, and bad in between. I am always losing calls. In one case my phone dropped off the face of the earth for about a day before I realized all my calls were going straight to voicemail. I called them and they pro-rated me for a day but I missed important calls during that time! Their EDGE data network is a joke. I am very bitter that Apple chose them as an exclusive provider. The iPhone is revolutionary and deserves much better than AT&T.
3-way calling
Call forwarding
Call waiting
Caller ID
Conference calling
Free U.S. long distance
Internet access
News & entertainment alerts
Numeric paging
Picture/video messaging
Ringtones
Text messaging
Voicemail
Walkie-talkie
excellent customer service
Fees
Activation fee
Additional minutes
Contract length
Directory assistance
Early termination
Network free roaming
Off-Network free roaming
Unanswered calls
Use of Minutes and Expiration dates
credit based security deposit
Plans
Data plans
Family plans
Free phone included
Individual plans
Pay by the month and pay for the phone
Pre-paid plans