"A new application USBLive has started showing up in
Ibex beta. As you might have guessed, this handy tool helps you to
make pizza. Just kidding! Of course, it allows you to make a USB
bootable disk with Ubuntu in it. Just give the source image (.iso)
file or insert a live CD, plug-in your USB drive, adjust the space
to be reserved by the default installation, and click Make Startup
Disk. How easy as that? You can access USBLive from
System>Administration>Create Startup Disk menu."