Ubuntu based on Debian sid?

[dave]

According to the 'Debian and Ubuntu' wiki page 
(http://www.ubuntulinux.org/ubuntu/relationship/document_view), Ubuntu 
is based upon Debian sid.

Does this apply to universe, or not because it's unsupported?

I ask because I installed qemu today, of which universe contains version 
0.5.5. Debian sid has version 0.6.0. Not too long ago, I migrated from 
Debian and was caught off guard by this.

I *think* I saw this with something else a couple weeks ago, but can't 
remember which package that might have been.

Can anyone enlighten me?

thanks
Dave