CutLab

by Ryan Staake, pompandclout.com
CutLab is a MIDI-powered Mac OS X application written for quick cueing of live projections. It was designed with an emphasis on simplicity and improvisation.
 Ryan has begun use of CutLab at live electronic music events and parties around Providence, RI. So watch out.

Unfortunately, CutLab is still in its infancy, and is not available to the general public... I am working on it though, and you bet your bottom dollar it'll be free.

In the meantime, feel free to peruse the video clips and related content:
  > Demo Video
  > Live set @ Nick's