I think Mercurial hasn't lost it yet. I speak as a creator of Mercurial Source Code management system (RhodeCode) We see that a lot of companies(our clients/us

I think Mercurial hasn't lost it yet. I speak as a creator of Mercurial Source Code management system (RhodeCode) We see that a lot of companies(our clients/users) adopting Mercurial, you just don't hear about it. Often those are companies with employees that don't tweet or post to HN ;) RhodeCode is used also in around 60 universities, and we learned that in a lot of them they teach Mercurial as well as Git. For a large company it's actually much cheaper to adapt Mercurial as they new DVCS because of learning curve. I hope companies like Facebook and Mozilla will make soon Mercurial very very fast. There's constant work on it coming from those companies to improve it.