It’s been 30 days since Yii moved to github, in that time:
97 pull requests opened, that’s nearly a hundred instances of people directly contributing to the core
463 comments on those pull requests, that’s an average of 5 comments per pull request.
689 people started watching Yii on github, (compared to 701 people who watched it on Google code over 4 years)
142 people forked the Yii repo
A success? I think so