Diego Inácio has created several geometry tools for Houdini, using Python.
Side Effects Software have announced the release of Houdini Indie for independent animators and game makers.
Houdini - Demo Reel 2013
Side Effects Software have unveiled the 2013 Houdini Demo Reel.
SideFX have announced Houdini Engine, an API that will facilitate Houdini integration into proprietary studio software.