You can clone with
HTTPS or Subversion.
Implement APIs described in http://developer.github.com/v3/repos/starring/, and in http://developer.github.com/v3/repos/watching/
Keep in mind this post: http://developer.github.com/changes/2012-9-5-watcher-api/
Implement stargazers (issue #70)
Implement subscriptions (issue #70)
We still have to implement something to follow the multi-step release described in http://developer.github.com/changes/2012-9-5-watcher-api/ We will do that in a subsequent release.