I have this problem also...all my apps crash over and over, even after reboot. I had a problem the other day when I updated my Units converter app...the really cool one that looks like a calculator. Well it kept giving me a message that said I needed to connect my iPhone to iTunes because there was a problem with the application loading. It said it would install it from there. So I did and that worked...first time I've ever had a problem like that. I think my iPhone might have gone through a reset via program crashing during installation. I was updating about 3 apps at the time and that one was the only one that had a problem. I've had it reboot before while installing and it never messed up anything. Anyhow, after that initial problem and syncing it worked fine. Then today ScoreMobile came out and I loved the web app so I installed it. That completely failed and it gave me the same message as before. So I synced it up and now I have the problem with all the apps crashing.....ALL OF THEM! It just keeps doing it, even after reset after reset. I even deleted off the ScoreMobile app and to no avail. I'll keep looking around for an answer and post back if I find out anything. Otherwise I'm going to backup and do a restore.