Regarding sharing apps through iTunes 9 with family members, we were never really interested in sharing music because our tastes are so different but the chance to share apps on respective iPads is intriguing. If we deauthorize one of the computers and then reauthorize it to have the same email/password as the other computer (i.e., the same account), what happens to purchases (say, music or apps) made under the now deauthorized account? Can one still play that old music/run old apps on respective devices (iPod touch, iPad) or do all purchases made with a previous account that's now deauthorized go dormant, meaning under the new authorization the old stuff will generate a "you are not authorized to use app/play music, etc." message or whatever. I imagine you cannot deauthorize a separate account/authorize a shared account between computers, then share apps and then have the first computer go back to its original account and expect the shared apps to continue to work on the respective devices of each computer. Going the shared account way is a one-way road, if I understand this correctly? Or is it? Thanks.