Office 14 is the code name for the next version of the Office System Wave of products.
Wouldn't it be cool if all the Office applications worked online, cross-browser from anywhere with AJAX and/or Silverlight? Or maybe even from your cellphone? What would be even better is if they had real time collaboration, integrating the rich client with the web clients. Well, wish no more because all of the above is going to be a part of the next Office Suite.