Mathias Möhl created an After Effects script for mocha and it rocks!

http://aextensions.blogspot.com/2009/05/mochaimport.html

MochaImport enhances the workflow with mocha tracking data in different ways. With the script the following tasks can be done as one click operations:

• create corner pin
• create CC power pin
• create AE trackpoints from Mocha track
• stabilize footage
• move layers according to track
• create a precomp in which the footage is stabilized while maintaining the movement in the original composition
• works with mocha for After Effects v1 (that ships with CS4) AND the upgrade mocha for After Effects v2