Question for any of you that had repairs. My wife's phone won't hold a charge. With no use, it lasts for maybe 1/2 a day or less. AppleCare is good til 3/2011 so if I take it to the store, will they swap it out or will they take it and send it someplace for a battery replacement, and my wife won't have a phone for a few weeks (assume it takes them a few weeks for repair).