Atlassian announced their acquisition of BitBucket today, in the process placing a large bet on Mercurial as a viable player in the DVCS space.  In my opinion, Mercurial is a great alternative to Git, with similar functionality and performance for 1/10 the learning headache, particularly for developers coming from SVN.  I think this is a wise move by Atlassian and allows them to compete head on with GitHub.  Keep using that $60M from Accel wisely, Atlassian.