See this happy couple? They're smiling because they're in love, they're at a waterpark, and they haven't contracted E. coli yet. They could also be chuckling with the knowledge that all 700 of their closest Facebook friends will soon see them canoodling in an artificial lagoon, thanks to a strange new photo-sharing program from Great Wolf Resorts. From now on, visitors to Great Wolf's Grand Mound lodge will be able to automatically post their vacation pics on Facebook, using only an RFID-equipped wristband. All they have to do is register their accounts at che