I've added a download to a Windows executable of the Flock example. This is mostly a test to see how things run on other people's machine and to find out what the best way to distribute an Okra executable on Windows is.
It contains both flock-ccl.exe and flock-sbcl.exe. CCL was my primary implementation when testing on Windows but it was very slow compared to SBCL on a slower Linux machine so I tested with SBCL on Windows and it was quite a bit faster. This needs closer examination :)
The demo isn't very fast due to several reasons not in the least because I haven't optimised it. Also while I have been cleaning up the code some compared to the other examples it is still a mess, but due to making examples like this the lispy layer on top of the Ogre bindings is slowly growing.
A nice experience while developing the demo was that I used some auto-generated functions that I had never used before and I didn't need to tweak the bindings generator. They worked straight away.
Anyway check: http://www.common-lisp.org/project/okra/ The demo's in the Downloads section as flock.zip.