http://www.xbox.com/en-US/dev/incubator.htm
if your serious about xbox thats one way to make a game for a console.
Now if your really slick, you can make a DBPro console.
you can have auto load CDs to run the program, win 98/xp/2k as the OS, and modify the Windows GUI to your own specs.
The problems with that is, a) the CDs would have to run the software, snd save to the Hard drive, so everyone would have to follow a specific set of rules.
Rules for saving
Rules for controls (gamepad)
Reset on the CD-rom = shut down of the software back to the front end
Basically it would run any PC game, but its possible.
I have modified windows server 2000 to autorun a custom server setup, there was no windows gui, once set there was no way to change it, modify anything. It auto downloaded patches and updates from the web server. every 2 weeks defragged, ever 24 hours did a back up onto a tape back up and then server side back up to a remote server (we had a OC3 line lots of bandwidth)
p3 512mb ram 20gb hard disk (partitioned into 5/15), decent video card with tv out, Nic, cdrom with autoload, win 98 (cheapest), keyboard, mouse, gamepad and set of dev rules.
There is alot of ways to do a DB console.
Once I get my MSDN package again (not working cant afford to renew it yet) its something I would try. The changeing of the windows GUI/Front end is legal as long as its your copy of windows. We had a reseller licence for the servers, thats why I know its legal.
I also have a couple spare p3s desktops and a spare p4 laptop, its something that I think would be fun to try. Basically all my xbox is a computer in a blackbox.