BetaNews writes, There's a reason CEO Steve Ballmer unveiled Office 2013 early this afternoon. Microsoft's productivity suite has a new face, so to speak. His presence communicates the company's commitment, particularly to businesses -- many of which are gun shy to big changes. The new version really isn't about applications after all but the cloud. Sure, the new suite is finger-licking good, however, it's what Microsoft offers beyond the device that matters more. The software giant is in process of completely reinventing Office for the cloud-connected device era. The new Office is just that -- a new office...