Re: PC World: Boot Camp graphics tests
I'm saying that you can have iTunes installed on as many computers as you like. But as I understand the iTMS user policies, music you have downloaded from that particular source can be shared on a LAN (or outside a LAN, for that matter) only among five computers. This is why it is necessary to de-authorize one computer before newly authorizing another (once you have hit that five-computer limit).
For example, I have authorized my mother's computer to listen to certain AAC files I have purchased from iTMS. She lives 250 miles from me but her computer is one of only two which has such authorization. That gives me three others. But when I hit that limit of five, then I need either to de-authorize one of the computers or just make my peace with the whole DRM thing, (which readers of these forums will know I'm not inclined to do in any event).
So the introduction of Windows and OS X dual-boot capability raises some interesting implications in this regard. It's still one box but it may represent two or more platforms. I think Apple will need to make allowance for this in future versions of iTunes -- and perhaps in other software as well.