Ok, so in my dorm building I get ZERO cell coverage, so I forward my calls to a skype #. Works, but I gotta set it up to forward every time i enter the building, major PITA I hope apple develops their GPS services to allow location based forwarding.I could select a spot on the map and tell my phone "whenever I'm here,forward my calls" This would also be useful for turning off the ringer. select my class buildings, set to "vibrate only mode" when I'm in the building. To solve the problem of a GPS constantly running to find out where you are, the accelerometer could be used. (detect that you've sat down or stopped moving after XX number of steps to determine probability of a location change) none of these features could ever be included on any apple sanctioned iPhone app, but maybe a jailbreak app?