Siva's blog

Microsoft Office 2010 is like to be hit to the market on May 12,2010 at 11am(EST). However this sales copy is available only for Business . The release of the copy for General purpose was not announced.
The live keynote focuses on the next wave of productivity that delivers:

* End user productivity across the PC, phone and browser
* IT choice and flexibility
* A platform for developers to build innovative solutions

http://sharepoint.microsoft.com/businessproductivity/proof/pages/2010-launch-events.aspx#fbid=S794Sz2SZTK

http://blogs.technet.com/office2010/archive/2010/03/04/get-office-today-or-tomorrow.aspx