I don't know if it's appropriate but can we list some of websites where one can login through browserID? I 'm a big fan of browserID, and would gladly beta test your integration.
- Times Crossword: http://crossword.thetimes.co.uk/
- Openphoto: http://current.openphoto.me/
- Voost: https://www.voo.st/
Our test application is this notepad application: http://123done.org/ (which you can clone from github)