Other than the patching comments and the cost for VMWare licenses, I fail to see what Virtuozzo provides that VMWare does not. The equation changes significantly if you look at something like Virtual Iron.

Re: How National Association of Home Builders moved beyond VMware, Part 2.

Mention is not needing a SAN to move servers. Well, copying all the data from one server to another has always been an option with Virtual environments so Virtuozzo has nothing there either.

Finally, perhaps he should re-read Microsoft's brief and papers on licensing. He claims to save a ton on MS Licensing but in fact, I'm quite sure based on his comments that he's out of compliance. In fact, Virtuozzo is mentioned in the MS 2003 Server R2 paper they put it out and licensing is exactly the same for it as for any other virtual environment. In fact, it can be more. I can hear the MS auditors knocking on his door right now.