Until today, the only carrier you could have a color Blackberry on was T-Mobile. Not so anymore–AT&T Wireless has inked a deal to become a reseller for the BlackBerry 7210. It runs on GSM/GPRS and like other devices from Research In Motion, includes a wireless phone, text messaging, e-mail, Web browsing and organizer access.

The device lists at $499, but if you give AT&T an older BlackBerry you can score as much as $200 off. AT&T is the only BlackBerry carrier doing “trade-ins”.