Can I use Ping on an airplane?
Ping automatically detects if it is in a moving airplane using the GPS velocity. If the receive only GPS velocity is greater than 255km/h (an airplane goes way faster) the device determines that it is in an airplane, then the GSM will be disabled automatically until the GPS determines that it is safe to turn then GSM back on when the velocity is under 255km/h. FAA regulations are designed to prevent the transmitting of data during flight and since Ping is in receive mode only with it's GPS, we play within that landscape.
The device's Bluetooth will continue to operate (like almost every electronic communication device) and obviously Ping has an internal lithium-ion battery, which may or may not prevent you from putting it in checked bags.
We strongly recommend you check with your airline regarding their specific regulations if you have further questions.