I have released my Idel IRC client for free on the Chrome Web Store, and simultaneously released the source code on GitHub.
There is still plenty that needs to be done to it, but it should already be usable to many in its current form already.
I plan to fix up any remaining bugs, implement a few new features, and eventually turn it into a learning resource for those interested in AngularJS and using it to build cool apps.
As I'm also pushing to a personal remote along with GitHub, I've put a small script on GitHub that makes pushing to multiple remotes as simple as
git mpush origin,github master.