I just stumbled across this link while surfing the net. Might be useful for those of you interested in OS programming. It's a barebones OS written by one of the guys on the BeOS team. It's being used as a base for OpenBeOS as well, so check it out. http://sourceforge.net/projects/newos/. Also check out OpenBeOS at http://sourceforge.net/projects/open-beos/.
Cheers,
cgkanchi

Edit: Just realised that those links are a bit out of date. To get the latest stuff click on the "home page" link on those pages.