The Garmin-Asus Garminfone was only recently released on T-Mobile, but it looks like the company may also be releasing a device for AT&T in the near future.  Engadget has unearthed an FCC filing for an ASUS nuvifone-branded E600 "PDA Phone" with 850 and 1900 MHz 3G bands, precisely what AT&T uses for 3G service.  It's been a while since the original nuvifone G60 was released on AT&T, and even Garmin has admitted that that device was a "disappointment," so the nuvifone could use a replacement.  After releasing the Garminfone, it makes sense that the company would bring a newer phone to AT&T, as well.  Since the Garminfone was based on Android, it's probably a safe bet that this new device from Garmin-Asus will follow that trend.  We'll be sure to keep you updated as we learn more.

Via Engadget Mobile