Beta 3 disponível para download, para Windows XP / 2003.

Download: http://www.microsoft.com/downloads/info.aspx?na=45&p=3&SrcDisplayLang=en&SrcCategoryId=&SrcFamilyId=60D09507-1160-4DAC-85E2-8D67F9B8257D&u=details.aspx%3ffamilyid%3d4C1A8FBE-FB6A-47AC-867D-BB1F17E477EE%26displaylang%3den