I am pleased to announce cSmartBlend 1.00 for Windows, Linux and Mac OS X.
This plug-in allows for easier rigging and setup of blendshapes within Maya, and supports partial blendshape style deformation. This means you can chop off the head of a seamless character, create blendshapes and still drive the seamless mesh. It also has tools for easily re-building blendshapes when topology changes on your mesh. For more information please see the comet digital website at http://www.cometdigital.com/
Be sure to check out the Gallery Page page as it has a Maya demo movie of how the plug-in works.