The Microsoft Exchange team has brought aboard <A HREF="http://www.informationweek.com/story/showArticle.jhtml?articleID=3D168600">two highly respected developers</A> known for their expertise in collaboration software. According to Information Week, Julio Estrada, a former star at Lotus Development who went on to launch Kubi Software, has joined the Exchange Server team. Also joining Microsoft is Bob Congdon, who was at IBM until recently.