Trading giant Mitsubishi Corp has gained exclusive sales rights for Japan to the SNA ps5520 software package that connects the IBM Corp AS/400 used as a host with the Apple Computer Inc Macintosh as a client: the company already sells a similar package which connects IBM mainframes and Macs; the software, as reported, was developed jointly by IBM and Apple, and has been localised by a Mitsubishi-related software house and the package will be sold through IBM Japan office systems dealers, Mac dealers and systems integrators; the SNA ps3270 emulator is already installed on a trial basis at some 10 large companies, Mitsubishi says; it looks to sell around 5,000 copies over the next year.