This specific example is nice although not truly universal. An interesting startup idea would be a bluetooth thingy (kinda vague, maybe a necklace?) that when

This specific example is nice although not truly universal. An interesting startup idea would be a bluetooth thingy (kinda vague, maybe a necklace?) that when pushed becomes a TRUE universal pause button. Pauses my DVR, my car audio, my linux mythtv box, everything, silences my phone ringer, mutes the TV, shuts off the alarm clock, temp-mutes the smoke alarm if its currently going off, silence the oven timer, car alarm off if its currently sounding, you name it. Sounds technologically possible although a huge PITA, which sounds like a great startup idea. You might need to ram thru a whole new bluetooth LE broadcast protocol, maybe. Or just a blind beacon of "anything" thats sniffable (edited: whoops that wouldn't work so well with silenced burglar alarm systems). I suspect this would sell pretty well once it gets universal...