Here's what Microsoft's chief said:
There you have it - yet another confirmation that Microsoft is looking to build more hardware. The company that brought you Windows has just recently launched its Windows RT-based Surface tablet, with a more powerful, Windows 8 Pro-running version expected soon. It's still too early to say if these devices are a market success for Microsoft, but at least they might serve as a reference for their hardware partners, which Microsoft hopes to inspire to build better Windows products in the future.
So the question is - what kind of device should we expect from Microsoft next? This is still beyond anyone's knowledge (anyone that's not in Microsoft, that is), although there have been some recent rumors of a Surface phone being in the works. But while we can think of a lot of reasons why that would be the next logical step in Microsoft's portfolio, we can't deny the fact that we lack any substantial evidence of such a device right now.