HTC finally released Android 1.6 image for Android Developer Phone, available here.
I have upgraded my phone and now it's running Donut.
I haven't check all the features yet. One thing I noticed is that the camera/camcorder app has new user interface and it's faster compare to previous versions.
I also noticed in Settings, Speech Synthesis is added as part of the Settings items. However, it lacks of Indonesian language. So far I have been using Eyes-Free for performing TTS on my application. Their packs include Indonesian as one of the available languages. I am not sure why Google did not include Indonesian in 1.6, since the TTS service in 1.6 is basically derived from Eyes-Free project.
That's it, I will start playing with new gesture recognition feature added in 1.6.