Los Angeles (CNN) -- What if your video-game console, TV, tablet and smartphone all worked together to enhance gaming, movies and TV shows for you? That's what Microsoft envisions with Xbox SmartGlass, a system introduced Monday at the Electronic Entertainment Expo (E3) in Los Angeles. The system is the most visible iteration yet of the future Microsoft hopes to build around Windows 8, its new operating system that promises to run seamlessly on PCs, tablets and smartphones. SmartGlass is an app for Windows 8, which is currently available in a preliminary beta version. But the system will also work with mobile devices running Apple's iOS and Google's Android operating systems.
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Xbox SmartGlass joins Microsoft's game console with phones, tablets, TVs
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App is for Windows 8 but also works with Apple and Android devices
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Biggest cheers Monday were for "Halo 4" trailer
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E3, the Electronic Entertainment Expo, is the year's biggest gaming event
But, this being @placeholder, the big excitement at the convention was about the games.