Engadget posted a story that Microsoft Office 2013 is now available to businesses

Right on time, businesses with the inside track to Microsoft's account team and partner program can now snag the latest version of Redmond's content production software suite, Office 2013. What's that? You've got the hook up, but you were also hoping for Exchange Server 2013, Lync Server 2013, SharePoint Server 2013, Project 2013, and Visio 2013? You'll be happy to hear that those are also available today -- the already announced "first quarter 2013" release window for Office 2013 stands, when it'll become widely available both digitally and at direct retailers. The big update to Office this time around comes in the form of Windows 8-style visuals and cloud-based saves using Microsoft's SkyDrive service.

  Microsoft Office 2013 now available to businesses, wide release still set for Q1 2013