That's not true either, I (mgcrea) was more than happy to merge efforts with the UI team. We started a joint repository with the UI-team and I did commit a lot (time, work, PRs) there. Unfortunately the UI team did not have the time (or will) to debate and work on it at the time, several months passed, I ended up quite alone there and finally we decided to part our ways. UI team got back to work on their existing codebase, and the work I had made there (several PRs) became the initial seed for the AngularStrap v2 full rewrite.

Have a look at the (dead) issue tracker if you're interested by the insights : https://github.com/angular-widgets/angular-bootstrap/issues?...