Not to long ago my son's laptop died. He also has an iPhone and had iTunes installed on the laptop. I removed the hard drive from the dead laptop and copied all of the data to an external USB drive that I use for backups. My desktop then crashed and I replaced it with a new one. The interesting part is that when I installed iTunes on the new desktop it seems to have searched all connected drives (including the external USB drive) for *.ipa files and added the applications to the ITunes library. I normally don't pay much attention to the App listing and just do backups and updates. The only reason I even noticed it was while setting up my old iPad 2 for my wife and installing applications that she would need. Anyone else seen this happen? Any way to easily remove those I don't want?