I updated App World on my 8900 last week. At first, it seemed fine. I was checking out the different sections to see what was new, & it eventually got stuck in one of the categories. I was able to exit out, the 1st time. When I later re-entered App World, it went directly back into that category, which is odd, instead of the beginning page & then it froze. I had no choice, but to pull the battery. Then..... "Reload Software 552"! I think the App World Update is Buggy!