Originally Posted by WHBM
Do North American carriers not have Airshow fitted ?
[snip]
A hand-held GPS is undoubtedly your best bet but probably breaks airline regulations about operating radio receivers on board.
No, here in the U.S., Airshow is pretty much limited to an internationally-configured aircraft flying a domestic leg.
Also, handheld GPS use onboad aircraft is permitted on many air carriers (I've used mine on AC, AQ, UA, and WN) and I enjoy using mine from time to time to identify landmarks and other Airshow like functions.
There's a thread or two in Travel Technology that discusses onboard GPS use.