Well, since my other thread got locked, I'm to ask my question differently. Let's say I buy five apps on my iTunes account, firstname.lastname@example.org (just for demonstrative purposes) and they download to my iTunes. Now, on the same computer, I log in on my friend's iTunes account, email@example.com, and buy five more apps. On my app list, it shows all 10 apps. However, do I need to be logged into each of these accounts as I sync the five apps for each? Or is it like, once you downloaded, they're yours no matter what? Thanks! EDIT: Btw, I don't have my iPod yet, or else I would test this myself.