Microsoft Office 2010 build 4417 is leaked, that offers small improvements and more stability over the previously leaked Mondo builds. The most notable feature is the Back-Stage view has been altered and enhanced alot. There's a new upload center to store and share documents online - perhaps through live mesh - or it could be the Office Web Applications/Office Live Workspaces. Other noticable addins are a new Activation system and updated icons for all applications.