Microsoft announced its plans for Office 2011 for the Mac, which it says will ship by the end of 2010. Office 2010 for Windows, meanwhile, will become generally available June 15, 2010. GA or General Availability means that RTM should be at least a month before that, but I expect even 2 months, mentions Paul Thurrott in WinInfo Short Takes Week of February 15, 2010. According to company insiders, the software giant plans to Release to Manufacturing (RTM) Office 2010 by the end of March/early April. Neowin questioned Microsoft on Thurrott's statement and a Microsoft spokesperson would only confirm "we expect Office 2010 and related products to be generally available in June 2010." Microsoft earlier this month, released the release Candidate Builds of Microsoft Office 2010 client (build 4734.1000) and server products (build 4730.1010) to Technology Adoption Program (TAP) testers. In an email, the Office team thanked testers, "as a valued Technical Beta participant, you play an important role in preparing Office 2010 for the rest of the world! We thank you for your continued participation, feedback, and hard work."

Source diTii.com