Microsoft's big 2019 event is just a few hours away and, thanks to some leaks, there are a lot of expectations coming into the Surface press conference. Even if it doesn't announce the fabled dual-screen Surface, a.k.a. codename "Centaurus", Microsoft will still make headlines if it does announce an ARM-powered Surface 2-in-1 tablet. This will hardly be Microsoft's first dance with ARM, even on its own Surface brand, and it will hardly be the last. But unlike the company's previous attempts, Microsoft has to make this one stick and has to make Windows work on the ARM platform. Not because Intel and AMD and the x86 CPU architecture are going anywhere but exactly because it isn't going anywhere at all.