I am glad to see the naming change. SproutCore and SproutCore 2 seem to have very different goals and very different approaches. People had preconceptions of what SproutCore 2 was based on their knowledge of SproutCore. I see that Ember.js, http://emberjs.com, appears to be the final name. Ember.js is a great name and I think the rebranding makes a lot of sense.