The alleged Surface Phone - reportedly referred to as 'Andromeda' - has led to several rumors over the years, but no official confirmation from Microsoft regarding the rumored device has ever actually emerged. Although this is still the case, according to Windows Central, the company is currently working on the foldable tablet, and it might actually be released in 2018.
Apparently, this device will run Windows 10 built with Windows Core OS and, as was earlier rumored, CShell as well. The adaptive UI shell will be a key component in its folding functionality, and supposedly the tablet, once folded, will be pocketable as well.
Digital inking is reportedly a significant aspect of this tablet; some prototypes open up into a special notebook app, linked with OneNote. In-app virtual pages further enhance the ability of the device to act as an actual notebook. It is highly likely that the tablet will be shipped with the latest Snapdragon processors, as it is rumored to run on ARM.
Earlier this year, several patents filed by Microsoft for a dual-display device were discovered, further fueling the Surface Phone rumors. It is important to note the tech giant reportedly does not believe this to be a smartphone replacement, but instead, wants it to act as a digital pocket notebook. Nevertheless, the device might contain key smartphone capabilities such as the ability to call and text.
Interestingly, Microsoft recently made it clear that new hardware is no longer a focus for the company. Therefore, it is advised to take all this information regarding the Andromeda device with a pinch of salt.
Bear in mind that Andromeda is also rumored to be the name of Windows Core OS, part of Microsoft's OneCore approach, and no definite link between the Andromeda device and the operating system has been established as of yet.