When Microsoft announced that it was working on the Surface Duo, a device with two screens, many people must have been sceptical of the idea. Such a concept has never taken off but Microsoft seems confident that it could work. Regardless, the device is coming soon and was even allegedly spotted live.

In last year’s October, Microsoft have debuted two folding devices named Surface Neo and Surface Duo. Both of them are able to be folded inside and outside with a hinge mechanism (not folding screen here). Today, the company has released the Surface Duo preview SDK that allows developers to express their creativity on the two-screen device.

Microsoft have recently revealed their Surface Neo tablet and Surface Duo phone with folding dual screens which can be folded inside and outside. The Surface Neo is likely the more powerful Intel powered device with Microsoft Windows 10X and a keyboard attachment that makes it look like the ASUS ZenBook Pro Duo (yeah, the keyboard leaves some of the touchscreen uncovered which then automatically sizes itself accordingly). The Surface Duo phone appears to be an Android-based Microsoft phone (Microsoft say they are working closely with Google).