This idea has been bounced around by a few people interested in getting Clojure onto the iPhone/iPad platform too, since the JVM is unlikely to ever be there.

This idea has been bounced around by a few people interested in getting Clojure onto the iPhone/iPad platform too, since the JVM is unlikely to ever be there. MacRuby suggests that it's not a complete pipedream, but the experience of the Unladen Swallow team indicates that it will not be all unicorns & rainbows. You'd also have to find an appropriate GC (I know some people are looking at using Boehm to get MacRuby on iPhone, but you have to wonder if you'll run afoul of the Appstore Police by incorporating a GC in your app.)