Microsoft has officially released the preview version of Windows 10, and has demonstrated the ecosystem with this system as the core. From Xbox, IoT devices, PCs to tablets and mobile phones, there are corresponding solutions. In the process of the press conference, a photo caught our attention, running a system suspected of Windows Phone on a huge tablet.

As can be seen from the figure, this huge tablet product does not have the Windows 10 start menu, but has three navigation keys just like the mobile phone. The difference is that these three navigation keys are displayed in the form of virtual keys.