Well, there's a reason that you're not allowed to use phones on the plane, and it sure as hell isn't to do with billing.
http://en.wikipedia.org/wiki/Mobile_phones_on_aircraft
There are riscs that it can interfere with the plane, however slim.
If you're really a pilot, I wouldn't want to fly with you.
While I agree that problems were present in the past, but no longer today.
Since the regulations were imposed by the various international bodies there have been advances in equipment and systems which have allowed the gradual introduction of safe in-flight communications via mobile phones and such devices. These systems are being implemented by an increasing number of airlines and carriers as each is tested by the authority responsible for air-safety and deemed to be fit for use.
There is a hand off issue swell, but not all that much of a problem. Now there is an issue will billing due to roaming; however, with most companies not charging for roaming any more that is no longer an issue.
Do you know how many people on each flight just put their phone on vibrate instead of turning it of, or turning on airplane mode.
If a plane were to have a problem with mobile phones don't you think the FAA would band phones being carried on to the plane, since they can not prevent someone from leaving it on.
Keep feeding on all the crap your wonderful government is handing you.