You don't need itunes to charge
your iPod, just a powered USB socket. My eee701 supplies power to the USB ports all the time it is connected to its charger, even if the PC itself is off. This is useful.
itunes will not run under the xandros OS, you either need windows, or need to install a different distro which can run amarok.
Amarok works well with ipods.
You'll find lots of help for the eee here: http://forum.eeeuser.com/
and here: http://wiki.eeeuser.com/
Not many people stick with the original xandros OS, my 701 is happily running kubuntu 8.04 (The HOWTO is on the eeeuser wiki).
Enjoy your new "toy" and welcome to LQ!