I upgraded to 3.1 last week when I got that e-mail from Apple saying it was available. I hadn't checked in here for several weeks, otherwise I would have ignored it and stayed on 3.0. Anyway, the only glitch I was having was that my Cover Flow in the Ipod function would fail and I would be whisked back to the home screen and whatever I was playing would stop. But, after downloading the MMS update I have no more glitch. Weird coincidence?