Alas no, it's a soft very integrated inside big company workflow like : Boeing, Airbus, Eurocopter,
US Navy, Frank Gehry ,Michelin, Renault, BMW, Toyota, Honda,Porsche, Audi, Goodyear, Renault Truck.
Alstom, Bombardier, Swatch ,Cern and of course Dassault
But from seen at the screen ergonomy with the graphic pen seems very fluent at the beginning of the second video ;)
Maybe the he most expensive system on the planet ! ;)
Don't know if the "3D Sketch" part can be used alone

http://www.youtube.com/user/3dsCATIA and then Shape Surfacing
http://www.youtube.com/playlist?list=PL6E9A105A0693A01F&feature=plpp (bottom page)