Absolutely. I see this need to form tribes based around language and technology really, really bizarre.
(EDIT: I understand it's human behaviour, but most of us developers can get on with their job, picking the best technology for each solution, without chest-beating.)
When you know one thing really, really well and it's a niche, it can seem be in your best interest to setup camp or form a tribe, or whatever...maybe not the case here but I see it a lot, DBAs specifically come to mind.
Personally I think Ember is closer to being Rails younger brother due to philosophies. I'd love to hear in detail why you picked Angular over Ember and (understandably) Backbone.
And Ember shares a core developer with Rails. That said, they are different things, but Angular seems to be taking a jQuery-esque position against Ember's Prototype, IMHO.