I did - I don't like Clojure (because I much, much prefer Scheme to CL) but it seemed very interesting. However, it felt very heavy, almost like GWT. There is something very similar for Racket[1], but even though it's Scheme it still feels much to heavyweight and I couldn't bring myself to use it.
I was very disappointed by whalesong. Instead of a source->source translator like parenscript, whalesong generates a bytecode level VM inside the browser. Doing so provides support for any racket language, but it does so at the cost of immense quantities of "pre-obfuscated" JavaScript.
The genesis of whalesong was to support "World"[1] games on the web, and to that end it seems successful. I don't think it makes a good general purpose tool. Perhaps someone wants to port parenscript to scheme?
Well, it's a 700k interpreter and runtime. It isn't slow for simple things, but only because JS is really fast now. Interpreters are usually 5 to 10 times slower than whatever they are running in.
But if you include a giant runtime, the compilation and evaluation of it on every page load, and downloading it (there's evidence to show many hit CDNs with cold caches, probably screwed up firewalls or proxies that mess with caching) can make for a suboptimal experience that can't be optimized without rewriting in something that doesn't require a bytecode VM embedded in your JS.
