ANONYMOUS Read the site: "Although we will not support Mac OS X officially, we will provide binaries for this platform. Apple bundles a CIFS client with the operating system and we will not try to compete with this free alternative. However, since we prefer Sharity over Apple's implementation on our own computers, we have Mac OS X packages available." Also, the 1-user/1-server license is free of charge, a student license is free, and a 2-user home license is $59. This is cross-platform software as well - not specific to OS X.
(Version 2.10)