We all know that cell phones have no effect on the on-board navigation system
Xeque, the most recent CAA report on this clearly details an investigation that shows conclusively that mobile phones DO cause interference. Tests were carried out onboard, I believe, a 737 and a 747 from various points throughout the cabins and behind a variety of bulkheads.
Now, before the techies jump on me, I can't off the top of my head remember the number, weblink and reference of the report - but should anyone want to know, I'll be happy to find out as I posted it myself on my crewroom wall.
Now once and for all can we get off this line that mobile phones do not affect the aircraft systems. Its getting tired. Its been proved that they do.
Apologies for the rant but I get sick of explaining to idiot passengers as well.
I'm all for judicious use of technology, travel with a laptop and a cellphone as a pilot and a passenger, but have the courtesy to realise they may annoy others if used inconsiderately.