Hidden away in Building 17--when he's not on the road, working to counteract the impression among open-source backers that Microsoft is the devil personified--is Bill Hilf. Hilf works for Microsoft's general manager of platform strategy and Linux point man, Martin Taylor. Hilf is the director of Microsoft's platform technology strategy group. He also happens to <A HREF="http://www.eweek.com/article2/0,1759,1813703,00.asp?kc=ewnws050905dtx1k0000599">run a sizable Linux lab</A> on the Redmond campus. Before joining Microsoft a year-plus ago, Hilf was instrumental in driving IBM's Linux technical strategy for its emerging and competitive markets organization.