How to make a Live USB running "from RAM"?

[Roberto Ragusa]

Hi,

I successfully created a Live USB bootable pen drive by using
my custom kickstart file, livecd-creator, livecd-iso-to-disk,
as explained here:

  http://fedoraproject.org/wiki/How_to_create_and_use_Live_USB

Everything works, but I would like to be able to remove the
USB pen after boot and run everything from RAM.
The machine has 2GiB of RAM and the img is 300MiB, so it is
certainly doable.

For what I want to do, one free USB port is more valuable than
300MiB of disk cache.

Is there a way to obtain this?

Thank you.

-- 
   Roberto Ragusa    mail at robertoragusa.it