Although the Mac platform is supported there are no binaries available for the Mac.
Please consider posting Mac binaries with the next release.
Also see: http://slashdot.org/comments.pl?sid=224068&cid=18143096
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I don't have a Mac machine, so I can't create a OSX build. But, there are users trying to build the program on OSX. Take a look on this: http://sourceforge.net/forum/message.php?msg_id=4076667
If you have some free time, and know how to build the wxWidgets library, try to build by yourself and let me know about the issues.