Gentleman
Plenty of work has been done on this
http://www.caa.co.uk/docs/33/CAPAP2003_03.PDF
Mobile phones are quite capable of creating havoc on the flight deck. Operaters that are starting to introduce mobile phones on board are using Pico cells which preclude phones having to boost the signal too find a cell. Although given the quality of some of the screening I see on aircraft I am not entirely confident this will help.
