Hi Joey,
Very little chance I'm afraid - I don't use anything Mac, as they just
don't have the huge variety of (free) software available on Windows
and Linux and so are next to useless for me.
Also, as I found out the hard way a while ago, Mac saves bvh files
with weird line endings, so there would be compatibility issues with
any bvh files produced by a Mac.
In short, Mac just don't play nice with other systems (i.e. Windows
and Linux) so it's really not worth the programming effort to port it.
That said, a number of people have got bvhacker working on Linux using
a Windows emulator (WINE). If there's a Mac equivalent to WINE,
bvhacker *may* work - but that's just a theory...
- Davedub