This looks fantastic. Anyone know how well something like this deprecates? My dream is to have a mobile site that is all Backbone-y on iPhone/Android but falls back to server-based rendering when loaded through a Blackberry or similar.
The goal is to render everything server-side; you'll need to handle POSTs and whatnots separately (since rendr is effectively middleware, so you can do what you like and redirect back to a GET route to display data.) In theory, it deprecates perfectly.