https://arstechnica.com/gadgets/2017/08/android-o-is-o-fficially-launching-august-21/

Google has revealed the launch date for the final version of Android O: August 21. Google will be livestreaming an unveiling event live from New York City at 2:40pm ET to coincide with the solar eclipse. There's a new teaser site up at Android.com/eclipse, which counts down the time until the event. "Android O is touching down to Earth with the total solar eclipse," the site promises, "bringing some super (sweet) new powers!"