Google Cast is one of those things that just seems to keep getting better, and with Chromecast sales doing so well, it's no wonder Google is throwing resources at the platform to make it even more robust. While not technically a part of Google I/O, Google did announce yesterday that some very awesome new Cast APIs are coming... right now. As in, they're here - for both iOS and Android.

There are a few major new features, so let's go over them.

The first is second-screen functionality. Casting graphically intensive apps from your device is no longer limited to simple mirroring - the new Cast Remote Display APIs (which are betas, so beware) will allow full-on second-screen functionality when casting something like a video game.

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