Seemingly just introduced into the Google Cast application, Google is looking for folks to enter a Preview Program for the Chromecast. What will you receive for entering? According to an enrollment email received after signing up, you will get sneak peeks at new updates (new features, device enhancements), and will have direct access to send feedback right back to the Chromecast team.
According to the message received, Google will email you as soon as the Preview firmware is ready for download onto a Chromecast. This email will overview all of the changes, allowing you test as you see fit. Google also links to a support page that is not yet live, but should be soon.
So, let’s get you signed up. First, you will need to have the Google Cast app installed on your device. Once opened, head into the app’s settings menu. Then, tap on notifications and toggle “Preview email.” After turning that on, I received an email stating that I was enrolled. Once you are enrolled, under each supported device’s settings you will see an option for Preview Program. Be sure to enable that setting to make sure your Chromecast device is enrolled properly.
Have at it.