Some marriages, however fractious, just refuse to break. Like unhappy couples scowling at one another over the golden wedding cake, Microsoft and Intel are back on the same stage, announcing Project Alloy, a combination of the former’s upcoming Windows 10 merged reality platform, and Intel’s RealSense virtual reality technology. The Wintel double act defined the PC era but failed to repeat the trick in mobile devices, driving Microsoft and Intel towards new allies. Their lack of success in smartphones may have convinced them that they work better together after all –at Intel’s developer conference (IDF) last week, Project Alloy was a highlight, and could be the first step towards defining a new Wintel ecosystem for wearables and other emerging connected…