Wow somebody did already start with that I think I will follow and make also an easy debian / easy backtrack, probably the best. Even better would be a bootable OS and then add apps to it. Well but I don't know anything about alternative OS which are bootable except NITdroid. =/

edit: Wow didn't knew that this was possible: http://ianlawrence.info/random-stuff...le-on-the-n900

If kubuntu can be installed why not ubuntu 10.04 + LXDE and enable backtrack + arm repos. Just I am not smart enough for this