Image from 9to5mac.
Two new iPhone models have been discovered in the Apple TV Firmware, which was recently been made available. Below, you will see iPhone models, some may not know it, but the iPhone 4 is iPhone 3,1 when being referred to in this manner.
Looking at Apple TV's firmware device configuration, it shows a 3,2 and a 3,3. There is also a spot for "UnknownHardware" which some figure may be a clue of that 7-inch iPad we've heard so much about.
It's hard to say what the unknown device is, but we don't think the other two mentioned phones are much of a clue, we know Apple will update the iPhone. Unless they are talking about a new carrier, but even that is all rumor and speculation as we wait for the official word.