A couple of weeks ago we had posted up a photo of what purported to be the Nokia 3660, a follow-up to their popular 3650 cellphone that swapped out that odd circular keypad of the 3650 for a more normal setup. At the time it wasn’t clear whether the pictures were genuine or not, but now Mobile.Burn reports that the FCC has approved the phone and that there will actually be two versions: the dual-band GSM 3620 for North America, and the tri-band GSM 3660 for the rest of the world. Besides the new (and improved) keypad, the phones are virtually identical to the 3650.