A decade after iOS, I guess it comes in from the "better late than never department", but I am happy. Apple seems to have lost its focus on the creative usage of their devices, and it has somewhat stagnated (compared to the initial explosion), plus iOS apps tend to be pricey.
Apple's decision to not include the headphone jack effectively puts the kibosh on their realtime audio / musicmaking apps. The latency on AirPods is atrocious. You press a key on a virtual keyboard, and count to three before you hear a sound.
Yes, this is probably solved by a dongle. Eh, I'd rather carry my Yamaha Reface DX around than think about that -- and the developers are going to have a FunTime(tm) explaining this to the users. (The sole reason musicians love iDevices so much is the JustWorks(tm) aspect - well, that just went out the window).
This Android API just might start a new wave. The video appeals to the synth nerd in me. The gear, the T-Shirt, the code samples doing the right thing.
I am looking forward to what this will bring us.