Microsoft is, as the previous slide attests, enthusiastic about keyboard-equipped tablets. In fact, Microsoft thinks keyboards should do more than type. These more-versatile covers, which the company is currently calling "blades," are still more of a science project than a sign of imminent products but their potential is intriguing. As the last slide mentioned, Microsoft has packed its keyboards with substantially more sensors. The result is not only better typing, but also a new kind of input surface -- like a touchscreen without the screen.
On Monday, Microsoft demonstrated a blade that can remix music with simple taps, with the user controlling the flow by applying varying degrees of pressure to different points on the pad. So if you've grown tired of wannabe DJs who use nothing but an iPhone, be prepared to see a few Surface-toting musicians.