seems very similar to sketchflow http://www.microsoft.com/video/en/us/details/1eea789b-c69c-4b09-a13b-b7422c0ff104 http://www.microsoft.com/video/en/us/details/

seems very similar to sketchflow http://www.microsoft.com/video/en/us/details/1eea789b-c69c-4b09-a13b-b7422c0ff104 http://www.microsoft.com/video/en/us/details/1eea789b-c69c-4... but for the web