Sharing models makes doing some form validations MUCH easier. My template language also runs on both server and client making progressive enhancement pretty tri

Sharing models makes doing some form validations MUCH easier. My template language also runs on both server and client making progressive enhancement pretty trivial (in terms of updating dom elements when models change) As for context-switch on server/client... if you use something like underscore on both ends, lots of things end up looking the same.