The problem with wireless sync is you still have to plug in the device to charge it -- especially after using wifi to transfer gigabytes of data to the device. I can see how it would have some value for quick top off syncs but I imagine from Apple's perspective wireless syncing is going to cause more of a negative outcome to their users (battery drain, multiple syncing procedures for software updates, etc) People are buying iPods, and other Apple devices, because of the elegant simplicity. That may impose limitations to some folks but of course there's plenty of good non-Apple alternatives.