Sun Microsystems Inc has added to its growing protfolio of acquisitions with the takeover of Mountain View, California neighbour Folio Inc, a privately- held company that develops and sells typographic and imaging technologies for use in electronic publishing. In particular, Folio supplies intelligent font scaling technology, a key component in applications development, says Sun, which, as is its wont, will operate it as a wholly owned subsidiary continuing to license its products directly.Also in the electronic publishing field, Sun has taken a $10m two-year order for workstations from Unda Inc, which does automated pre press systems, and $2.5m from printing equipment specialist Monotype Corp.