mmc,
Yes, there are some "unstable" packages, but the crack cAos development team is working to stabilize them, even as I write this. :-)
If you meant something more along the lines of "is there some accommodation made for packages that are the 'latest and greatest', but not as bug-free as others in cAos", the answer is also yes: the Crazy package repository. A more complete explanation of the structure can be found here:
http://www.caosity.org/index.php?opt...=page&SubMenu=
I hope one of those responses answers your question,
Troy
P.S. - My first response was with info that needs to be cleaned up -- sorry.