No.

We have all heard this and were never given a source. I for one could not understand how using a portable or cell phone would increase risk of a lightning strike.

Apparently it's not the use of the phone but having it on your person.....the metal content of having it close to you is the risk ...probbaly not as much then as your car keys or that beer bottle opener you been carryinga round since college.

http://www.theregister.co.uk/2006/06...sation_killer/