That's the main takeaway from Paul Thurrott's extensive . The preview is in private beta, with its users bound to a non-disclosure agreement, but Thurrott managed to get a copy of the software and posted lots of screenshots.

To be clear, the version of Office 15 that Thurrott examined is a desktop app. It runs in a window on the desktop and has traditional desktop icons when viewed through Windows 8's Metro Start screen. (In fact, it has 19 icons, one for each of Office's individual programs and utilities, though Thurrott thinks they'll get cleaned up for the final product.)

Still, Office 15 has plenty of Metro flavor, through the use of minimal colors, sharp edges and the same font that runs through the touch-optimized side of Windows 8. The “Ribbon,” a strip of commands first introduced in Office 2007, returns in Office 15, but it's hidden by default, adding to the software's minimalist vibe.

The addition of Metro concepts isn't just about aesthetics; Office 15 also tries to introduce some ideas from Windows 8, such as the ability to connect web services such Microsoft's SkyDrive and Yahoo's Flickr. Office 2010 has cloud integration as well, but in Office 15, these web services take more of a central role, with icons for SkyDrive and other Web locations appearing alongside those for the local machine when saving and loading files.

Microsoft also tries to accommodate tablet users in the desktop version of Office 15 with a “touch mode” that increases the size of buttons and other elements. Users can also edit Word documents in full screen mode, which should prove helpful when a software keyboard is covering part of the screen.