My wife and I have a single AppleID account that we both use for downloads etc. My wife has an Iphone and the MobileMe "Find my Iphone" service works well with this. I have now purchased an Iphone of my own. Do I have to set up an additional MobileMe account to use the "Find my iPhone" service for my phone and, if so, what effect might this have on synching my Iphone to the AppleID account?