You make a good point, so I have removed the dscm tags from that one. I added this because I feel that the ability to keep full branches in the same repository that you can push and delete easily gives you far greater flexibility than bzr or hg, which you can only get the exact same functionality by having separate repositories that are clones of each other. However, since that's not what I was demonstrating in that section and it's a bit too complicated to amend easily, I've removed it and focused in that section on the advantages over svn and perforce. perhaps later...
I should point out that hg is perfectly capable of maintaining multiple named branches in the same physical repository. Checkout hg branch. I am not that familiar with bzr but it probably has something similar.
