Wouldn\'t it be possible to make a DOS emulator for the PS2?  Two USB ports (mouse & keyboard), hard drive expansion slot (so many possibilities), and of course, the CD/DVD-ROM drive itself could make this a possibility.  Heck, a Windows or UNIX emulator is possible also.  Just a thought......
And for all you retrogamers:
Like playing the classics on your PC?  An emulator for the PS2 could consolidate all those classic systems into one.
"Hey I got a PlayStation 2, let\'s go play Super Mario 3."