Just a short note again on HandlerSocket developments: PHP bindings to the HandlerSocket client library have been spotted in the wild: https://code.google.com/p/php-handlersocket/ (I'd like to credit someone, but I have no idea who user "avuenta" is on Google Code. Is it you Dathan?)
I found this on Dathan Vance Pattishall's blog. I haven't personally had time to try it out yet as I'm still deep into my current project (of which I hope to blog in January).
"...php-handlersocket which is a PECL type version (C driver with exposure to PHP). It does the job but needs some work that I'm doing now."
So, I'm taking bets whether we'll have Java client or Python client/bindings coming up next?