Google has silently added Nexus One Phone that is compatible with AT&T and Rogers Wireless 3G network.
https://www.google.com/phone/choose?hl=en&gl=US&s7e=
Compatible with 3G on AT&T (U.S.) and Rogers Wireless (Canada)
Supports three 3G/UMTS bands (850/1900/2100 MHz) and four GSM radio frequencies (850/900/1800/1900 MHz)
The AT&T and Rogers Wireless 3G compatible version of Google Nexus One Phone sells for $529 just like its unlocked T-Mobile counterpart.
Google still on track to release Verizon Wireless and Vodafone versions of Nexus One Phone this Spring 2010. For sure some AT&T customer would buy this phone right now.
Would you “ditch” your iPhone for an AT&T Compatible Nexus One Phone? I know this guy just did it.