The new Chromecast app is already live on Google Play

Google’s new Chromecast app, detailed during Tuesday’s big launch event, is now available to download from the Google Play store.
The new companion, which will support all current and new Chromecast 2.0 hardware, gives users the chance to sample the new ‘What’s On’ section of content.
Now, instead of browsing from individual streaming apps like Netflix, Google Play, YouTube and Hulu, Chromecast owners will be able to cast directly from their companion app.
Previously the companion app had done little but allow users to set up their Chromecast dongle with their home Wi-Fi network, while all the actual casting was done from within the various apps.
See also: Why Chromecast 2.0 is the perfect response to Apple TV
The new app also brings the new Fast Play feature to the fore, which enables viewers to begin caching content from the next episode to cut down on loading time and in-stream buffering.
There’s also a Get Apps section that makes it easy for Android users to obtain Chromecast-compatible applications.
The new $35/$30 Chromecast devices are available to buy now with shipping before the weekend.
As well as the new app, the mobile-to-TV casting tool offers greatly improved Wi-Fi connectivity and a new round and colourful design language.