At Relevance we've released a "framework" for this; it's not MVC, but it addresses the same concerns. It's still in an alpha/beta state, but you should check it out if this stuff interests you: http://pedestal.io/
I'm planning to use it in my next pet project. What I like the most in your framework is the URL generation feature. IMHO it was missing in all other Clojure web libraries. So thank you for your contribution!
