I upgraded my macbook to 10.7.2 and itunes 10.5 yesterday, but I was not able to upgrade my ipod touch. Just now, I backed up my ipod touch before doing restore. IOS 5 was successfully installed on my ipod touch, however I lost 47 apps. The apps still shown in my library but the file is gone from my itunes\itunes media\mobile applications. I tried to go to itunes store, the download link was greyed out. Spotlight unable to locate those apps either. Any other suggestions guys.