I have noticed that it is possible to get a headset which allows the pilot to connect there mobile phone/ mp3 player does anyone know if you can get an adapter that lets you connect a phone with out having to change headset?
Going back to the original post and the forum that it is on I am assuming that we are talking about someone who is flying VFR in a light single as his question is very straight forward. The rules may be there to guide us but if this is the case then really what is the problem? Give him a break. I have used a mobile phone many times when airbourne, while flying solo. I have never noticed any interference to any of the (non FM immune) equipment onboard (a standard piston single), it was not anymore distracting than talking to my passengers while monitoring two radios and keeping track of the football (on Saturdays only). The only practical point was that once above about 4000ft the signal quality drops off due to the angle above the transmitter masts.
Stay safe and remember that communication comes third after flying and navigating.
