Today might be all about the next chapter in Windows, but there's something for the hardware-heads, too. Specifically the Surface Hub -- which joins Surface tablets, and Lumia smartphones on Redmond's roster of gear offerings. This beast is basically a large all-in-one PC (slash smart display) that is fully loaded with sensors, speakers, WiFi, NFC, microphones, cameras and more. The funniest thing? This huge device has been hiding in plain sight for the duration of Microsoft's keynote today.