Hey, not a pilot here, just curious ... is there any technology in existence or under development that could relay air speed to pilots from GPS technology? For example, a GPS device on board an aircraft would interact with either fixed ground stations or satellites in defined locations, and this interaction would yield an air speed? I would imagine (in my rather non-technical haze) that such technology could also be adapted to read out the pitch or AOA, all of which would render these pitot tubes obsolete?