B-Prolog is now available to users of Mac OS X and the Darwin OS. The free edition of B-Prolog for Mac OS X/Darwin is available from www.probp.com . The binaries will work on Mac OS X version 10.0 to 10.0.4 and Darwin 1.3 and above for PPC processors. Make sure to put the Bprolog folder inside your home directory. A port to Darwin for Intel processors is also in the works. David Kopec