I'm glad to see Vim, Python, Mozilla, and Google Code all moving toward Mercurial. It's great to have two very healthy projects in the DVCS space.
* you're working on a project at work where the code is available via ssh at `some_host:/var/repos/the-project`.
* you're working on a project where the code is available via http from the author's site
* etc.
Currently, I think the impression they give is that you only use bzr if you're also using LaunchPad. That needs to change.
BTW, are there any other source code hosting sites that support bzr besides GNU Savannah and SF?