Abstract (for those who really hate videos): Demonstration of a prototype which lets you pick tools in place, i.e. there is no back and forth between a palette and the canvas. You pick a tool by putting several fingers on your screen, tools are then attached to your fingers. You pick a tool by removing all but the finger which has the tool you want attached. Tools are priority ordered, i.e. the finger you put down first gets the highest priority tool attached. You can even change which tools attach to which fingers by lifting and putting down fingers.
— edit: Stupid me! I linked to the YouTube video but the author has actually written a blog post about his demo (linked from the description of the video). Here is the link (which should be the link of the submission but I can’t change that now): http://mattgemmell.com/2010/08/11/finger-tools