The 160 employees of Microsoft’s Macintosh Business Unit (MacBU), such as executive Tim McDonough and general manager Roz Ho, are avid Mac enthusiasts and users who are in the Mac development business for the long haul, according to a Seattle Post-Intelligencer article. The employees can be spotted wearing “I Don’t Do Windows” shirts on occasion, and many use Macs both at work and at home, the story said. McDonough told the Post-Intelligencer that the MacBU is planning for the long haul, it has the support of Microsoft’s corporate leadership, and is a sizable, successful enterprise in its own right.