every time i sync via USB with my mac book pro, itunes goes through a step called "transferring purchases" - it seems this list gets longer and longer every time. this time, it is transferring 100 purchases. they look like apps only. for example, the twitter app, which i have had on this phone since i bought my first iphone, so i have not "purchased" this app any time recently. why is it doing this? it takes forever and is unnecessary. how do i shut this off?
