Actually cell phones were banned on airplanes in flight not because of the FAA but because of the FCC. If you could remember back to the 80's and early 90's you will remember the old analog phones. Well the billing was more dependent on your physical location. The FCC and cell phone companies ended having people who were in airplanes making phones calls that would skip towers. Some people would be charge long distance while other who should be charged for long distance were not. Well you can see the problem with the only industry that has worse customer service than airlines.
Secondly, I know Midwest Airlines will allow GPS to be used inflight between the 10's.
Secondly, I know Midwest Airlines will allow GPS to be used inflight between the 10's.