MojoKid writes: We all know what Microsoft wants to do with Windows 10. It's supposedly the last monolithic release of Windows and the ultimate plan is to unite hardware from different device categories under a single, universal ecosystem. That includes smartphones, which is an area where Microsoft has historically struggled hard to compete. The release of a premium "Surface Phone" of some sort, however, could prove to be a game changer. Microsoft is aggressively pushing Windows 10 upgrades, and makes no bones about it, all in an effort to get developers on board to build universal Windows 10 cross-platform apps and spur mobile development. In that respect, Microsoft needs to finally make an impact in the handset space and Windows 10 Mobile is the company's one shot to do just that. And it appears that Microsoft is working on what could be essentially a true Surface Phone, or at least something very similar. In a recent interview, Mary Jo Foley pushed Microsoft's Chief Marketing Officer Chris Capossela on the prospect of a Surface Phone and he confirmed the company is working on a "breakthrough" phone that is the "spiritual equivalent" of their very successful line of Surface branded products. Capossela has been with Microsoft for over two decades. He used to write speeches for Bill Gates and is intimately familiar with Microsoft's many products and strategies.