Hi David,
We're not planning an OS X version at this time (the code is probably somewhat portable but we don't have the toolchain to build on OS X). Out of curiousity, how much of your development is actively performed on Mac?
About 30%. We treat OS X as equivalent to Linux, which is true for the most part. I use X-windows, and the full GNU tool chain. Most opensource installs with the standard config/make cycle. Use of OS X is increasing.