James Surine of MAMED who is doing a MAME port to Dreamcast updated his site with this great news:

Update. I’ve fixed the color problem, we now have keyboard and joystick input. I’ve added sound, the game menu and option menu are working, you can quit a game and play another, the speed is very good. I have a build with about 500 drivers in it and most of them appear to be working. I am doing a little Beta testing right at the moment, Christophe Thibault of MAMEDC says it works “works very very well” and even runs contra for him, a special thanks to him, his source code to mamedc saved me a bit of time for a couple of things I hadn’t bothered to finish yet. I’ll see if I can get that’s sound support fixed up for everyone.

He’s also put up 5 more screenshots. Check it out at http://digita.mame.net/news.htm