Microsoft should have plenty to show off at this year's Build conference. The event kicked off Wednesday with a keynote led by CEO Steve Ballmer — but even before he took to the stage, Microsoft announced that some big name apps were coming to Windows 8, that Windows 8.1 will bring scaling support for high resolution displays, and that a version of Office optimized for touch interfaces was in the works. For all of the latest details, you can follow along below.