FYI, this is what's been eating into my Clojure output. The Hy REPL starts up instantly and the interop is so good I find myself writing small projects in Hy instead.
Edited to add: The killer feature here is cross-interop: I can re-use my code in either direction (and have run Hy in PyPy, IronPython, etc. -- sadly, not in Jython yet)
Here's a wiki implemented with it (demonstrates using Bottle, doing URL routing and few other things): http://github.com/rcarmo/sushy ...and here's a little playground with various snippets of code: https://github.com/rcarmo/hy-there
...and a feed fetcher: https://github.com/rcarmo/mqtt-feed-fetcher/blob/master/main...
...and a prototype for a nicer REPL: https://github.com/rcarmo/hyrule
Edited to add: The killer feature here is cross-interop: I can re-use my code in either direction (and have run Hy in PyPy, IronPython, etc. -- sadly, not in Jython yet)