I finally watched the second video. I actually played with Alias Sketchbook a little bit last year during beta when they were developing the AutoCAD plugin. The plugin is cool because you can use it colorize/stylize your technical drawings and I believe there is also a Sketchbook to AutoCAD vector converter so you can take sketches into AutoCAD pretty easily. I was hoping for a replacement for Autodesk Impression... sadly Sketchbook doesn't quite fit the bill, that and I needed a tablet to really make any efficient use of Alias Sketch... It's only 2D, but very cool in the hands of a pro. BTW-there is a sketchbook for iPad/iPhone it's cheap, but works quite well.