dodger: I'd be curious to know where y'all bled over CoffeeScript or Backbone, if you don't mind sharing.
Isn't that one of the major drawbacks of using a bleeding edge Tech Stack? Albeit mitigated by choosing to use code that is easy to comprehend/maintain (like backbone!)
What do you think you will do? E.g. With backbone: Merge up, status quo -- maintain your branch, change libraries, or something else?