I have something very strange with my MacBook Pro 15" Core 2 Duo (production december 2006) in combination with my iPhone 3G. When I put my iPhone on the place where my right wrist rests, take it away (2 seconds) and put it back there, my Mac goes to sleep. I tried it several times and it keeps repeating, it was not a one time thing. It does not work now anymore, though. (And now I keep getting a lot errors in console regarding FireWire, 17-10-08 18:11:16 kernel FireWire GUID ffffffffffffffff is invalid!) What could cause my MacBook Pro go to sleep? Is there a sensor somewhere near the SuperDrive? I'm not interested in solutions, that's easy, just stop putting my iPhone on top of my Mac. I curious if somebody else can reproduce this by doing the steps above.