Integration with Atlassian's tools should be very exciting. For a while now, I've been thinking that Atlassian should try a code hosting service and integrate their code review, code coverage and source exploration tools. Hopefully it works out as well as I imagined it would.
I also want to point out Atlassian likes both Mercurial and Git:
hear hear!
For what is worth, I don't understand why they don't integrate with existing projects as a premium service. Not only bitbucket but github, patch-tag etc.
I also want to point out Atlassian likes both Mercurial and Git:
http://www.atlassian.com/summit/2010/presentations/developme...
Disclaimer: I'll be working for Atlassian next year (and now I'm hoping to work on Bitbucket sometime).