Microsoft demos real-time co-authoring for Office web apps

With Microsoft's Build developer conference kicking off in just a week, we're frankly surprised the company is choosing to release any news ahead of time. Today, though, the firm posted a video showing some changes to Office Web apps. In particular, the preview indicates that these various web apps will now support real-time co-authoring, with multiple users making changes at once (yep, just like Google Docs). That's a nice, long-awaited improvement over the current setup, in which multiple user...