Originally posted by Sesquipedalian
Works wonderfully. More stable than the Windows builds, and better frame rates than I expected. Great stuff, taylor. Very much appreciated. 
I'm still working on the slowdowns but it's considerably better in beta2 than in beta1. I'm hoping for better/noticable compiler optimizations in beta3 but it will probably take a lot more profiling to get rid of most of the problems. Stability should just be on par with the Linux version and after more work I think that the performance will be as well.
And also remember to use -no_fps_capping since the speed gets killed in beta2 otherwise. Beta3 fixes that though.
By the way, here's some trivia for you: if I store fs2_open.app in the Freespace2 directory on my Windows machine and execute it through the network using the Mac, it uses not only the data in the Windows directory, but even the commandline flags that are set on the Windows machine. This happens despite having a fs2_open.ini stored in the proper location on the Mac. (In case you are wondering, I tried this out in an attempt to save HD space on the Mac.)
Yep, that's supposed to happen actually.

The cmdline options are actually stored in a different file (cmdline_fso.cfg) than the ini file and that is compatible across platforms. On the Mac you can also put cmdlines in ${HOME}/Library/FS2_Open/data/cmdline_fso.cfg and it will override whats in the Windows version. So for instance you could like an ambient factor of 80 on windows so you could have "-ambient_factor 80" on the windows machine but the Mac could have "-ambient_factor 75" in it's special version of the file and that would get used instead.
Don't know how familiar you are with true multi user platforms (unlike Windows) so that may not make too much sense. It's a neat feature of UNIX (Linux and OS X) systems though and I take advantage of it constantly. I especially take advantage of that for mods so that I can have a basic set of cmdlines in my ${HOME} directory and change some based on the mod without having to keep up with with ever changing options.