Coolest thing ever- (thanks Nate for pointing this out to me)
Quantum computor gets answers by not running a program:
http://www.newscientist.com/channel/info-tech/mg18925405.700.html "And now researchers from the University of Illinois at Urbana-Champaign have improved on the original design and built a non-running quantum computer that really works."
"The idea behind the feat, first proposed in 1998, is to put a quantum computer into a “superposition”, a state in which it is both running and not running. It is as if you asked Schrödinger's cat to hit "Run"."
or:
http://www.physorg.com/news11087.html(slightly more technical)
or:
http://www.physics.uiuc.edu/People/Faculty/profiles/Kwiat/Interaction-Free-Measurements.htm(much more technical)