If you need any help in building or testing OSX version I'm willing to help.
I'm C++/iOS developer, CodeWeavers/WINE Advocate (apps compatibility tester) and SciFi lover. If you need any help just PM me.
At the risk of sounding like I'm trying to poach you guys, I'd suggest heading over to HLP's source code forum and getting to work on the main branch of the code.
Sooner or later someone is going to want to port WCS back to the main branch (since from their posts I doubt the WCS team are going to want to back port two years of SCP additions) so you might as well get started now.
Both Linux and OSX builds are pretty much ready to go.
I just discovered this site/game and really eager to play this! I was wondering if there is an update to the Mac version of this game since it's been a month since you stated it was ready to go? Thanks.