Startup Disk Creator

Startup Disk Creator is an official tool to create Live USBs of Ubuntu from the Live CD or from an ISO image. The tool is included by default in all releases after Ubuntu 8.04, and can be installed on Ubuntu 8.04. A KDE frontend was released for Ubuntu 8.10, and is currently included by default in Kubuntu installations.
The KDE and Ubuntu frontend go under the names "usb-creator-kde" and "usb-creator-gtk", respectively.

Features

Install bootloader to USB device

Future development

The tool is available for Ubuntu or Kubuntu and also for Windows starting in Ubuntu 10.10 "Maverick Meerkat" but accessible only by inserting the Live CD or DVD into a CD-ROM/DVD-RW drive with Windows running.