And since last year, you can choose Bitbucket and still use git 100% of the time.
THAT seems to me what Fog Creek is doing here -- realizing, shit, we picked wrong, but now we have all these users, how can we take a mulligan and pick git?
And they did it. So like somebody else here said, what they've done is change the answer to "Does it work with git?" from no to yes.
(Note I am also not saying that anybody choosing hg over git for their own development 'chose wrong'. But if you are trying to do business by selling people a mainstream DVCS service, hg isn't the best choice you could make.)
