It finally happened! On Wednesday, we finally got a glimpse at what Microsoft has in store for its next version of Windows and how it plans to compete in the tablet market. Yes, after months of some leaked screenshots and rumors, Redmond finally showed an early preview of what’s now codenamed Windows 8 — or what is perhaps better thought of as a mashup of Windows 7 and Windows Phone 7. While we expected to just get a brief glimpse of the OS, Vice President of Windows Steven Sinofsky demoed quite a bit of the interface at D9, and VP of Windows Planning Mike Angiulo showed off even more of the UI and some early hardware later on at Computex. We’ve taken a hard look at all the information that’s been released and come up with a primer on what we know so far about Redmond’s forthcoming operating system, so hit the break for a deeper look at what’s coming.