Multiple Boot Partitions on a USB Thumb Drive

I once created a 1gb usb stick with four partitions.

using this guide or something like it.

http://www.911cd.net/forums//index.php?showtopic=18846

(on the stick I had puppy, systemrescueCD, slax and command line limited distro with a grub menu to select which partition to boot.)

I used two sticks at the time, creating each boot systems on one stick.Then shrinking and cloning the usb stick into each partition of the resulting stick.

Booting each partition by using chain-loader in grub
See: http://www.justlinux.com/forum/showthread.php?threadid=143973

Regards,
J