On a similar topic but slightly off the subject, Airbus has recently performed a detailed study on the effects of using mobiles phones while in flight. The brief was to invetstige effects of mobile phones on a new very large aircraft project but installing receivers in the overhead racks and using a satellite link to connect the call (albeit at VERY expensive service, and only likely to be available to business class and above).
Studies were successful but were rumoured to lead to significant weight increases from the additional shielding required and transmitters.
So, theres hope yet for all you compulsive texters out there