There is a hg plugin which allows lossless communication between git and hg [1]. So in a way github already exists for mercurial, and since it already exists th

There is a hg plugin which allows lossless communication between git and hg [1]. So in a way github already exists for mercurial, and since it already exists there is no question as to whether or not it is possible to do. 1: http://hg-git.github.com/ http://hg-git.github.com/