For those who are interested, Cinepaint released its first Windows BETA on March 9, 2003. Of course, those who use Vegas to earn a living probably have more capable
commercially available tools in their arsenal.

http://www.cinepaint.org

-----

CinePaint is a free open source painting and image-retouching program with components based on GPL, LGPL, MIT and other open source licenses. Check out the site for more detailed information.