Apricot Computers Plc, planning to ship IBM PS/2 Microchannel compatible machines this month, is looking more and more out on a limb as two more companies follow Dell Computer and Tandy Corp is questioning whether demand justifies their shipping the Microclonals they have announced. Tulip Computers NV had promised in the summer to start shipping a System 2-3868 Microclonal later this year, but says it is holding back on it because the PS/2 won only 4% to 6% of the Dutch market in the first half of 1988; Tulip will therefore hold off from putting the machine into production, and meantime had committed to building to the forthcoming Extended Industry Standard Architecture bus. And in Taiwan, Acer Inc says that it will likely not now ship Microclonals at year-end as it originally intended, because it sees almost no demand.