A couple of weeks ago, Microsoft announced an intriguing new partnership with China's largest smartphone vendor, Xiaomi. The two companies have been collaborating to enable owners of Xiaomi's Android flagship, the Mi4, to install Windows 10 on to the handset - perhaps with the ultimate aim of developing a 'universal' means of installing the OS onto any Android device.
Microsoft said that it expects the 'Windows 10 ROM Pack' for the Mi4 to be made available "in the months to come". Xiaomi released an image of the OS on its handset last month, but a video published more recently on the company's MIUI forums now shows Windows 10 in action on the Mi4.
At first glance, it may look like it's actually Windows Phone 8.1 running on the device, but if you look closely at the on-screen keyboard, you may be able to spot the new 'nubbin' that allows users to scroll more easily through text - a feature that has only appeared in builds of Windows 10 for phones.
The video also shows that the Windows 10 build installed on the Mi4 responds to inputs from the handset's Android hardware buttons, indicating that those buttons have been remapped to interact with the Windows OS.