BOINC 6.6.0 alpha for Mac is now available at http://boinc.berkeley.edu/download_all.php. This version fixes wrong file permissions issues with Enigma@Home (and probably any other project which uses copy_file flag). Also, BOINC dev-team could use some more Mac alpha testers, if anyone would like to become an alpha tester, please read here about it: http://isaac.ssl.berkeley.edu/alpha/.