Sort of. I just read a thread on MacSlash that got me to drop a note to SourceGear, makers of SourceOffsite (SOS). My company has a SOS server so I asked SourceGear if they had a Mac client. Turns out that they make their Unix client source available (though not open source) so users can compile versions for their specific platforms. A user has done so for OS X. It runs under X11 and is as fully featured (as far as I can tell) as the Windows client I use on my Windows laptop at work.

I’ve uploaded the client to FM and you can get it by clicking on this link: ACunning_sos.tar.gz, unofficial OS X client for SourceOffSite.

They are also coming out with a native OS X client in the next release of SOS (version 4.1, I believe) coming out this fall. Good stuff. You can find more information on their boards.