Will it be Oreo, orange creamsicle, oatmeal cookie, or something else that starts with the letter "O"?
Android users are often left wanting more when it comes to their phone's camera. It's not hard to imagine Google doing a cheesy tie-in with the biggest astronomical event of the year. There was also no clue or hint regarding the correlation between the upcoming solar eclipse and the name of Android O. Android O basically places specific limits in location updates, background services and implicit broadcasts.
Note that Google recently launched the Android Things Console, which enables support for over-the-air updates to Android Things devices.
As for other users, it's likely that the final build of Android O might be made more widely available isome time in October or November.
There is a possibility that the Android O may still contain some bugs and the company is trying to fix them before releasing a stable version for the Google Pixel smartphones.
Of course unless you have a Pixel or Nexus phone you're unlikely to see Android O for a good while yet - get in touch with your Android phone manufacturer to see if and when you can expect to see the latest version of the mobile OS on your own handset.