How are IPad owners safeguarding the purchases of their Apps? I know that iTunes manages them for you, but that is only while they are on one's PC, or Mac. Now, let's just say that there is a problem with a computer system, which can ONLY be countered by a System Restoration. All data is, naturally, wiped out, and a re-installation of iTunes translates into a clean & fresh seating. I'd like to know how others might be insuring that their App purchases will always be available to them. Advanced thanks.