I just published a devzone article on OSnews.
From the blurb:
Devzones, short for development zones, is a type of virtualization found in the Nexenta distribution. It can be used to define a base developer environment, which can be easily cloned many times. These copies can easily be destroyed and recreated. Devzones are built upon Opensolaris Zones, which are extensions of a chroot-like environment for the entire installed system. In other words, it allows for virtualization of an Opensolaris environment (and variants of Linux), without the performance hit that is generally associated with virtualization. This article gives a practical introduction into using Devzones. Read more on this exclusive OSNews article...
The devzone homepage: http://devzone.sf.net