Microsoft today announced that it has started a private “technical preview” of the latest version of its flagship Microsoft Office 15 productivity suite. Currently, this preview version is tested by a number of Microsoft customers under a non-disclosure agreement (NDA). Despite the NDA, though, chances are we will soon see screenshots and other information about Office 15, but for the time being, Microsoft itself is very quiet about the new version’s features. Come this summer, though, the company plans to launch a public beta that will likely be open to anybody who wants to give the new version a try.

According to Microsoft, “Office 15 is the most ambitious undertaking yet for the Office Division.” For the first time ever, says PJ Hough, the CVP of development in the MS Office Division, Microsoft will “simultaneously update our cloud services, servers, and mobile and PC clients for Office, Office 365, Exchange, SharePoint, Lync, Project, and Visio.” This means that the Office web apps, which are becoming an increasingly important part of Microsoft’s overall productivity suite, will likely be updated in concert with Office 15 and that, as the Next Web’s Alex Wilhelm notes, “Microsoft is working to roll cloud features into every copy of its newest suite.” Currently, only a subset of Office apps features some form of cloud integration.