I am working on getting Ubuntu 10.04 booting on my N900 and so far i am able to boot into a console login, but my system shuts down due to the twl4030 hardware watchdog (I'm using the same watchdog package that Jebba's fedora12 port is using, however i seem to be having some issues with /etc/init.d/n900_wd setup - /dev/twl4030_wdt doesn't seem to exist early in the boot process when it should, thus /usr/sbin/wd_keepalive can't ping twl4030, leaving twl4030 to assume that the system needs to shut down). I'll hopefully be able to resolve this problem soon, so we can 'get the ball rolling' on Ubuntu-N9X0.