Autodesk have annexed Exotic Matter's Naiad. Here's a demo of the final version of standalone Naiad.
Animating the Turtles in Teenage Mutant Ninja Turtles with Maya
ILM VFX supervisor Pablo Helman talks about the performance capture for Teenage Mutant Ninja Turtles and the animation done in Maya.
Bipedal Free Rig
Ahmed Shalaby has released a free rig for 3ds Max, that offers a lot of flexibility and unusual features.