Major Malfunction version 1.5 is now out from Defective Records Software. This is a new version of the Mac OS X realtime audio plugin created for use in Ableton Live. As the name suggests, this software is specifically for screwing things up along the gamut from minorly to majorly. Use it as either a VST or an AU plugin.

Major Malfunction version 1.5 processes the incoming audio in a user-specified or random manner, and syncs itself to the Ableton Live tempo automatically.

From the Defective Records website:

New Features in version 1.5

New effects: distortion, vocoder, slow down, & silence

New enhancements to gate effect

New master multipass filter

New click reduction

New "effect gapping"

New clock multiplier

New randomize and evolve functions for effects

Grid state & all parameters now saved with Live session

Improved preset management

Improved automation support

New ability to turn hints on/off

New undo feature

Now works correctly with Novation automap controllers

Now supports multiple instances of plugin in one Live session

Efficiency improvements "under the hood"

Small bug fixes

System Requirements:

Mac G4 667 MHz or better

both PowerPC and Intel architectures supported (Universal Binary)

Mac OS 10.3.9 or greater

Ableton Live, v4 or greater (earlier versions not tested - but they may be okay)

Cycling '74 Pluggo, Pluggo Jr, or Pluggo Runtime, v3.6.1 or greater (Pluggo Runtime provided free if required)