Officially, I have left the Go team too; I started on a new team at Google a few weeks ago. I still use Go quite a bit, I still talk to people on the Go team regularly, and you will still see the occasional code change, code review, or blog post from me. Most importantly, I have high confidence that the team we built will do an excellent job continuing the work.
The parent comment is the first time I've said anything publicly (it has only been a few weeks). I didn't feel like it needed an announcement, but since it came up, it seemed worth correcting. It's not a state secret. :-)
In my August announcement, I was careful to say I wasn't leaving the Go project. I'm still involved with the Go project and expect to keep being involved. I'm just not officially on the Go team at Google anymore. Stepping back from the actual team to give others room to lead always seemed to me both likely and appropriate.