Any chance of a link to that info?

It certainly is slightly confusing - take the post by Moose at UD referenced in this post.

"After running the new rosetta task in beta for a week I've moved it into production. You should see the new application the next time you connect to the UD servers.

This update reduces the memory foot print of Rosetta to ~26M Real Memory and ~200M Virtual Memory."

This is what the Rosetta unit is showing in my task manager -


So that would correspond to what Moose stated about the Rosetta units. It does look from that that the VM size is the amount of Virtual Memory that the program reserves out of hard drive space but obviously conflicts with the quoted definitions in your post.

I'm not saying you are wrong - just that the situation is very confusing ;)