A European partner is to be introduced into the IBM Corp-Apple Computer Inc alliance, Apple president Michael Spindler revealed in Frankfurt on Monday. The alliance with IBM was not intended to remain a bi-lateral relationship. We are talking to other European systems vendors. The choice is a narrow one these days, with only Siemens-Nixdorf Informationssysteme AG – not a major world player in personal computers but keen to be one, and Ing C Olivetti & Co SpA, whose allegiance to the Advanced Computing Environment has seemed less than rock solid, as the two most likely. Less likely are Groupe Bull SA, Amstrad Plc, Schneider Rundfunkwerke AG and Tulip Computers NV.