Here's the mutiny I promised you.

Engineering students get into some odd research, I've been in some pie-in-the-sky projects myself. Here's a great one from two grad students at Georgia Tech:

http://crave.cnet.com/8301-1_105-9816998-1.html

The idea is to use sound to determine were a person is blowing on a computer screen and use that as part of the user interface (they call it BLUI). Which means that huffing at your computer might actually do you some good in the future. This technology has the potential to be really, really annoying. Imagine having to sit in a room full of people you may or may not know or like, such as a cube farm or airport terminal, with everyone huffing away at their screens. This could send the wrong signals...

"Are you upset about something?"

"No, I'm checking my email."

I'm not seeing much in the way of commercial prospects here.