I have been tempted to try your stuff many times. But ultimately no experience with Scheme or ios (and lets face it the time to motivation ratio wasn't good enough either).

It is great work, and I think there's value in making other languages that don't require huge runtimes viable for ios development.

Just today I found a Clojure/ObjC bridge: https://github.com/galdolber/clojure-objc