One real big pet peeve of mine is when you have say iPod program v. 2.0, and they Demand! that you upgrade! to iPod program v. 3.0, and iPod program v. 2.0 won't even work anymore, and especially if you don't have in iPod 3. So literally you can't do the new work on the current device that you have; you have to buy a new one @ the store!