I have a 16GB 3Gs (3.1.2) with AT&T, not jailbroken. I have a recurring issue where my iPod app comes up showing "No Content" and Settings > General > About shows 0 songs, 0 videos. However I have only 1.3GB available and when I connect to iTunes I can see 2000+ songs, podcasts, videos and audiobooks. It doesn't do this all the time but recently I'm left with "no content" after about 75% of my syncs, the rest of the time it's just fine. I tried a full restore over the weekend and it didn't make any difference. I manage music manually (my library's 180GB+) but I always ensure to eject before disconnecting and allow time for the library to update. I didn't have this issue before 3.1 but I only had the phone a couple of weeks before that. 3.1.2 doesn't seem to have fixed it. After 3.1 several people reported the same issue but it went away with a resync, which this doesn't. Any ideas? Thanks.