I had an iPhone 3GS plugged in over USB to a new '309 several times over the first few days and was really enjoying it.
Then, while I was in a hurry one day I unplugged it while playback was paused, and the AVR was turned on with the USB input selected.
It doesn't quite make sense to me, but that appears to have glitched something--because now I can't get *any* Apple USB device recognized (tried: iPhone 3GS, iPhone 3G, iPod Touch 4th gen. each with three different cables that worked fine with iTunes on several PCs)
Any suggestions besides e-mailing Onkyo (already done) and contacting Amazon (next step)???