well, this is the same argument about the proof of the (non-)existence of something that can't be seen. the absence of observation is no proof of the non-existence. the fact it can't be seen may simply be due to the fact that we look in the wrong place / at the wrong device (which all the discussion about TWO devices was about, in a way...) unless there is a 2nd device, obviously, there is a keyboard. any proof of the existence of a 2nd device? anyone?