It has a bunch of issues. - touchpad doesn't work. Back in December With Richard's help I tried debugging but didn't get far before running out of time. - some of the function keys have weird side effects - on reboot the kbd driver gets confused. You have to power cycle by closing/reopening atrix's lid. - so now I use an external wireless mouse and find the kbd can get in a mode where further chars are not accepted until you wiggle the mouse. - keys are a bit close so I mistype a lot. Due to other projects I have not gotten back to this + I am pretty clueless about USB & will need Richard's help.
Still, it is useful. Yesterday I took it to the local "raspberry jam" and showed off 9pi to a few people including Eben Upton (the RPi inventor). But OSes are not exciting to most people. We need applications!