the new features in harmony 9, are in:
http://beta.toonboom.com/professionals/harmony
http://www.youtube.com/watch?v=iZkhDtyfFEo
-Pressure support
-Configurable "Pencil Line Tips
-Texture information
-Pencil Line Template
-New Deformation Technology:
Bones Deformers
Curves Deformers
-New Particles plug-in and SDK infrastructure
-2D-3D Integration 