During a recent roundtable discussion at GDC, Spencer was asked his thoughts on Valve Software, and more specifically, the upcoming Steam machine platform. "[Valve has] been the backbone for PC gaming for the last decade when you think about the work that they've done," Spencer replied.
"As the Windows company I appreciate what they've done," he added. "In a lot of ways they've focused more on PC gaming than we have, and for me that's something inside the company that we'll have a renewed focus on - Windows and PC gaming inside of Microsoft is definitely happening - you saw the DX12 demos here and you will see more from us over the summer."
Spencer failed to specify when we could expect to see more from Microsoft, though he later suggested the company is preparing for a big showing at this year's E3 conference.