cd2usb 0.4.3 (Ubuntu Live USB Creator for Windows)
Easily create Live USBs of Ubuntu (also works with Super Ubuntu)
Features:
* Optional persistence (from 128 MB to 4 GB)
* Can use an Ubuntu CD or an ISO (or automatically download one)
* Requires only 800 MB of free space on the USB flash drive
* Does not format the device
* Installs bootloader into device
OS: Windows 2000/XP/Vista
Homepage and more info:
http://hacktolive.org/cd2usb