I know how svn branching works - I don't think I explained myself clearly.
I'd love a RCS that would let me see every branch that currently exists without having to check them out. The branches would exist as directories on my local filesystem. Any file operations (doing a directory listing, or accessing a file) on these local directories would actually be doing RCS commands and pulling data over the network, but I wouldn't have to think about that anymore.
If you checkout the svn root, you get all the branches as directories in your local filesystem. After that, it seems it would be the same as what you're saying.
I think he means that the way you work is the same as in SVN but the way the system works is like Git etc.: the branches are editable and accessible like directories but with the advantages and changeset-construction of Git behind it.