Motorola Computer Systems Inc has signed a joint development agreement with Scotts Valley, California-based Touch Communications Inc which will result in a Unix-based version of the Touch Open Systems Interconnection networking software by the end of the year. The software will be licensed to Motorola which will sell it on its Series 8000 range. Touch expects the port to be available by the end of the second quarter or the start of the third. Other Unix implementations are also planned: the software currently runs on MS-DOS systems, VAX/VMS hardware and the Apple Mac.