I have a Logitech keyboard as well. I run GNOME 2 with Sawfish as my windows
manager. Under the Desktop Preferences -> Advanced -> Sawfish -> Keybindings
you can setup all kinds of handy keyboard shortcuts. There is a handy key grab
feature so you don't have to know scan codes. In this case, Acme conflicts with
Sawfish for keys, so don't use Acme.
You also have to configure X-windows with the itouch keyboard. Not all my keys
function as I have it configured. Some day I will get around to digging into why.
Also if you want to use the multi-media keys with XMMS, there is an itouch plug-in
for XMMS. A search for itouch on <a href="www.freshmeat.net">
www.freshmeat.net</a>
will find it. Again, keys bound to XMMS will conflict with Sawfish and most likely Acme.