Based on our experience working with clients at Cantina, Backbone seems to have the biggest mindshare and widest adoption. We have several active projects that are making use of it.
There has been some passing interest in Angular and Ember, but nothing concrete yet. The press on Ember for the past few months may raise more awareness.
There has been some passing interest in Angular and Ember, but nothing concrete yet. The press on Ember for the past few months may raise more awareness.