I have an iPad 2 wi-fi. I have downloaded in the neighborhood of 40 applications, mostly free. When I receive an update notice and I choose to update I sometimes get a message that states that one of my apps will not upload at this time. This is a confusing message because this app is all ready downloaded and it is not even one of the apps that is receiving an update? Am I not getting the full benefit of the app it mentions? Is it some glitch I should just ignore? Any thoughts please.