Microsoft just released a preview of the Office 2013, the latest version of its productivity suite for its own operating system, last Monday, July 16. It was codenamed Office 15.
It will be available for Windows RT (Windows 8 version for tablets with ARM processors), and also for 32 and 64-bit systems. Rumors say that it won't be available for iPad.
New features include an improved interface, which is based on Metro, a UI designed by Microsoft itself. Major changes were made to MS Outlook, more templates and transition for Powerpoint, and a new splash screen for OneNote.