I'd like @samccone's thoughts on whether this is breaking or not. There's no doubt that [it makes it more consistent with Backbone's router](https://github.com/jashkenas/backbone/blob/master/backbone.js#L1358), but it's undocumented. Folks might be doing something crazy with their `appRoutes` hash expecting it to always be the strings, and there's nothing in the docs that says not to do it. Because of this I would want to flag that functionality for v2.