Gaming on the move

We're taking a 4.5 hour train ride to Leeds at the weekend, and then even longer on the way home, so I am hoping to entertain myself using a Windows 2000 laptop with no CD drive. The options I'm thinking of are:

• Pingus
• Prince of Persia on WinUAE
• Continuing work on my secret Track and Field game by porting the UI stuff to Windows.
• Booting some kind of Linux off my iRiver. Not at all sure this is possible.

The easy way would have been to run Games Knoppix, but there's no CD drive. Gutted.