RD, you are convincing yourself that mobile phones are not a problem because nobody can prove to you that they can cause a problem. You are aproaching this the wrong way. Until you can prove mobile phones are NOT a problem, you should accept that the possibility is there. Until it can be shown that a mobile phone can be anywhere in a cabin and not cause a problem, we should not be pushing to relax the rules. I do not want to be the statistic that may show they can be a problem while we try and sort this problem out!
I also do not want to be subjected to a cacophany of telephone conversations on aeroplanes that go on all through the night when people can't sleep, and stop those around them. this whole thing could be a social disaster, and I'm afraid unless aeroplanes can fit phone booths, I certainly don't want to be an unwilling listener to multiple "I'M ON THE PLANE!......somewhere over Sudan!......landing in about 5 hours......WHAT? SHE DIDN'T!......" Spare us please.