This is neat as hell. You can have a dual boot system with either Windoze or Linux, and the complete Linux distribution resides on your flash drive. All you need is a flash drive 1GB or bigger, and the ability to boot your system from a USB device. You can take your Linux operating system with you, wherever you go and boot from ANY computer that supports booting from a USB device. I partitioned my 4GB flash drive into 2 FAT32 partitions, and not only can I boot Linux, but have 2 GB left over to save files and projects on, which is plenty.
Here ya' go. Enjoy.