Butch Arrington's Group / Autodesk Sketching Tech Preview
I have no idea what this product is called, but its incredible looking. Think about a cross between Sketchbook Pro, AliasStudio and some fantastic brand new tech that infers working planes, allows you to create, shape and refine accurate curves in a much more flexible and seemingly powerful environment.
THIS, my friends, ROCKS. I watched this live and was blown away.
On and note: it runs on MAC OSX. Yes, Autodesk are developing for the Mac platform again.