Microsoft will be releasing its Microsoft 2010 in the later half of 2010 , this will be finalized on Wednesday.
Office 2010, previously known by the code name ``Office 14'', will include slimmed-down versions of Word, Excel, PowerPoint and OneNote that let people create and edit documents in a Web browser. Consumers will have access to a free, ad-supported version.
Microsoft plans to let hundreds of thousands of people test a technical preview of the new Office portfolio starting in the third quarter of 2009. (I want to access it !)
A beta version of Exchange 2010 was to be made available on Wednesday. (Source)
PS - Microsoft 2010 will be a notable one. I expect many advanced changes. Hope they all happen.