Inkling Smart Pen demo?

Has anyone seen a demo of an Inkling Smart Pen yet? I read a blog post about them today and they seem pretty awesome, in fact it might just be a bit too awesome.

They're supposed to capture a digital version of your hand-drawn pictures. I want to see a video of someone using one and see how accurate it is. Granted, it's pretty expensive so it may very well work, I'm just curious!