The source code is officially hosted at the following locations (the website source code exists within the website branch of the repository). Git is used as the version control system.
If you would like to follow the development of ease.js or would like to be notified of new releases, you may subscribe to the easejs-dev mailing list.
GitoriousGitorious is recommended, as it is itself free software.
$ git clone git://gitorious.org/easejs/easejs.git
GitHubGitHub is a popular social coding platform. While the code is hosted there and you are free to make use of GitHub's services, note that GitHub is proprietary and ease.js does not endorse it, nor make use of its services; it is used purely for hosting.