I upgraded my iPhone and iPad to 5.0 and did the iCloud sync for both, too. Everything is working great with my iPhone. The apps on my iPad, though, are not working. Mail, settings, calendar, YouTube, game center, etc. work. However, if I tap on an app, it starts to boot for 1 second and then stops. Does anyone know what could have caused this and how to fix this? I already turned off my iPad and re-started it, but that did not fix the problem.