https://arstechnica.com/gadgets/2017/08/android-8-0-oreo-is-official-starts-rollout-out-to-devices/

NEW YORK CITY—Happy Eclipse Day! As the Moon slowly crept its way across the Sun, Google took the opportunity to host an Eclipse-themed Android 8.0 launch event in New York City. Along with eclipse glasses and a simulcast of NASA's eclipse livestream, Android "O" finally got its full name: "Android 8.0, Oreo."

Like KitKat before it, Android's alphabetical snack-themed codenames have gone commercial and partnered with an actual snack producer, adopting Nabisco's trademarked "Oreo" as the name for this release. The event also came with the traditional statue unveiling: a superhero Android Oreo.