What do you mean by if he de-authorities my computer I will no longer be able to use that app? Say if i load the app on my iphone then he de-authorizes my computer so the next time i sync to my computer that app will no longer work?
Yes, that's pretty much it, according to what was explained to me in this thread.
But I *do* have a suggestion:
when talking about songs, videos or apps, it's something you can add and remove from your iPhone/iPod.. and here lies the "problem" with the authorization (since after the de-authorization you can no longer use them).
BUT when it comes to *upgrading* your iPod touch (examples: the January Software Update, the 2.0 Update) it's a little different: since it's something you only add once and it remains on the iPod, you can purchase it for 9 dollars, and then you can have ALL your friends come over to your house to sync their iPods to your computer and have, thus, the software upgrade. Your friend's content will be deleted, but when they get home, they can re-sync their iPods with their libraries, and then they'll have had the update "for free".
You can always divide the price then
I'm talking about the iPod touch only because the updates for iPhone are always free..