A new patent has surfaced from Microsoft that may shed some light on the company's upcoming Surface Phone. The patent, which was first filed in October 2014 and recently made public, details a 2-in-1 foldable device with a flexible hinge that can act both as a smartphone and a tablet. TrustedReviews reports: The device in the filings can be configured into various shapes, either folded out like tablets, or folded back inwards to create a smaller phone-like handset. There's also the opportunity to place it in a tent-mode much like Lenovo's range of Yoga hybrids which can be propped up to make it easier to watch media. Microsoft has taken a universal approach to Windows 10, in that the OS is designed to work across multiple devices, so a Surface Phone that could transform into another mobile product would make a lot of sense in terms of demonstrating Windows 10s capabilities. The inventor of the product in the patent is listed as Kabir Siddiqui, the man behind Microsoft's successful patent for the Surface kickstand and Surface camera angle -- which bodes well for this latest design in the long run. Unfortunately, there's every chance we'll never see this technology in a retail-ready product from Microsoft, though some version of the foldable device could well arrive.