Well, that didn't take long. After lots of silence regarding Project Astoria, Microsoft is killing it in favor of its shiny new Xamarin purchase. In case you'd forgotten (entirely understandable!), Astoria was the initiative that'd make porting Android apps to Windows 10 supposedly pretty easy. But with yesterday's announcement that Redmond had purchased Xamarin, a company whose sole mission is multiplatform apps, perhaps the news isn't entirely surprising considering the delay Astoria hit last November. In fact, the Windows Blog post mentions Xamarin explicitly several times, saying that developers can now use that toolset and a pretty big chunk of their existing C# code for cross-platform applications.