not only can you do cool sketches, but it records every stroke that you do, and you can see other artist’s processes when they work by simply clicking on their thumbnail. good fun
That’s good stuff
It remebers me my good Colors! on DS or iPhone.
It is cool and you can see also there how you did the sketch.
The only thing I was disappointed is that the site has no pressure support, the pressure is a fake simulated on the actions of the mouse. Anyway it gives good fx and great pencil looking.