I have itunes on a MBP and i began the upgrade process on my 16 gb iphone. After the software was downloaded from itunes it took about 15 minutes to upgrade the phone. (My iphone has 14gb of stuff on it). Now.... my wife uses a PC and i began the upgrade on her 16gb iphone. After the software download, it has been running for about an hour...and still going. Her iphone has about 10gb of stuff on it. Are others experiencing this long a period to perform the upgrade?