Our campus has wireless access areas which we would like a way to automatically map using some sort of Google Maps mashup in combination with a wireless device, preferable iPhone or iPod Touch.
The idea would be to walk the campus with the wireless device and as long as it stays connected, it would 'color' the map to indicate wireless coverage. When it loses connectivity, obviously, it would not be able to 'color' the map at that location.
Does such an iPhone app exist? Or for some other wireless device?