Good Gear Guide
In Pictures: Back from the EDGE - a look at the ev...
No carrier choices
Rightly or wrongly, AT&T exclusivity was seen for a long time as a chief downfall of the earliest model iPhones. The iPhone wasn't available on any other carrier until January 2011, when Verizon announced that it would sell the iPhone 4. Sprint got access to both the iPhone 4 and 4S in October.
In Pictures: Back from the EDGE - a look at the evolution of the iPhone