I just got one of these unit, and sorry to say....
It's still just a click wheel, with no wheel action :cry: I got it because it looks so much nicer than the 1'st generation ones. Also because the other unit I had didn't have any battery management (Sleep/off mode) drained battery so if I left it "soft off" over night the unit was useless in the morning.
Has 4 games and different record mode options. Sadly I still can't backup the firmware since it's too new still 9.1.52. 2 G's, and they call them MP4's cause I'm not 100% sure, but the AMV format is MP4 compression.
I don't think there has been any real documentation on the AMV format. Trying to get away from M$, and no real Linux version is available for the AVI to AMV conversion.
Other than that not much new except that the usb is a larger plug, and the earplug is 3.5mm and not 2.5mm
Screen is OLED as well so it's brighter too.