"Acrylic" is the codename for an innovative illustration, painting and graphics tool that provides exciting creative capabilities for designers working in print, web, video, and interactive mediums.
Download it here
I think this an update of the beta Microsoft made available of a program called Expressions originally developed by a Graphics Company called Creature House, the orginal developers of Painter, now owned by Corel. Expressions now code name Acrylic, is a respected graphics program on the Macintosh platform.
I also think Microsoft owes me this much after canning PhotoDraw 2000 which was such a lovely graphics program now rear and expensive if you can get a copy on e-bay.