The Nano team internalized, and asked themselves "What have customers been asking for", and added a radio and camera. The Radio seems to have come out of nowhere- So far as I know, the iPhone/touch don't have them.
The iPhone/iPod touch team, on the other hand, continued to not add the Camera, since it's a differentiating feature, as you suggested.
No, but the Zune player has long had FM radio, so best to dominate the Microsoft competitor in all dimensions.
BTW, FM is very convenient if you have a dedicated old computer streaming internet radio and connect it to a small-commercial-type FM transmitter; you can then get FM reception of internet radio over all of even a large property, automatically in time-sync, using existing audio equipment and "portable radios" including the new Nano. (This is legal in the US, but not in all countries.)
Actually, they might. The iPod Touch 2G, at least, contains a chip that has the potential to handle both Bluetooth and FM radio reception. At the time the 2G Touch was released, the chip's Bluetooth and FM capabilities weren't enabled. But according to the following article, the 3.0 software upgrade started using the chip for Bluetooth: http://www.tomsguide.com/us/iPod-Touch-Bluetooth,news-3642.h...
It's possible that the chip's FM capabilities will be enabled on a future software update.
Not necessarily. It was a much-demanded feature for the iPod for a while, though there isn't much customer pressure nowadays. On the other hand, both my Sansa Fuze and my Nokia 5310 have FM tuners in them... Maybe they felt 'peer' pressure to include an FM tuner since there are a lot of other devices out there that do.
The "Good, Better, Best" strategy is massively broken here.. Do I want HD space? Class. Do I want Video? iPhone or Nano Do I want Photos? iPhone Do I want cheap? Shuffle Do I want Apps, but cheap? iPod Touch
We're stuck with a features grid, not a clear progression.