Apple Computer, set to launch its A/UX version of Unix at Uniforum next month – and the thing is tipped to come on a daunting 70 floppy disks – may go one further and start to promote the Macintosh interface that goes with A/UX as the standard Unix user interface. Sun Microsystems spokesman Bill Woo says that the Mac software is one of the three main alternatives that could form the basis of the user interface component of Sun’s ABI program, the others being IBM and Microsoft’s Presentation Manager for OS/2, which may also be ported to Unix, and the Next Inc screen-based version of Adobe Systems Postscript language, due out this summer – an announcement on the final choice could be made by Sun within the next few weeks.