Re: Online Ubuntu Project
A couple of things come to mind, which I don't think would actually be all too difficult, but more along the lines of getting an "Ooo, I didnt know you could do that!" response from a typical user:
low-cost render farm for Blender 2.5x
VM Server you could use to host various OS's for test beds or software compatibility with Remote Desktop / VNC access
Some type of webcam home security system.
Any advice given is the direct result of my experience solving my problems on my system. I have no idea what I'm talking about. ~bouge