
As expected, the developer beta is available for the Galaxy S20 series. The Galaxy Note 20 series will most likely be included in One UI 3.0 beta testing as well, but Samsung will probably wait for the beta to go public before it adds its latest stylus-toting flagships to the party. It's possible the Galaxy S10 and Galaxy Note 10 series will also get the One UI 3.0 beta, as Samsung did allow Galaxy S9 and Note 9 owners to test One UI 2.0 last year.
No one knows when the public beta will kick off, but when it does, it will be made available in the US, Korea, China, Germany, India, Poland, and the UK. The feature list for One UI 3.0 is a mystery as well, though we can expect that to change soon now that the developer beta has gone live. We'll let you know once we learn more, so stay tuned!