I've had mine unlocked since i got it (Sept 14th 07, don't ask why i remember that) and I've updated once. Was on 1.1.1 when I got it and went and updated to 1.1.2 in Dec. I've noticed that my touch screen sometimes fails to respond so I have to press my home button to get it to, and when selecting songs sometimes the placing gets weird and if I press one artist, it'll select the artist that's 3 or 4 spots down. Home button solves that as well. But otherwise I haven't found any real issues. Those things get annoying but it's nothing major.