What is working [on the N9 Android port]:
- dualboot kernel (without reflashing), ability to choose OS after power on.
- 3D drivers, OpenGL
- hwrotation (portrait mode only, accelerometer HAL doesn't work)
- touchscreen (multitouch)
- hw buttons (volume, power)
- USB networking
- lcd off in sleep mode
- alarm driver, RTC
- mounting MyDocs as "SDCard" (realized; NOT FIXED, but HACK EXISTS]
- basic video decoding (sw) and playback, youtube (choppy)
- basic CellMo functionality: network registration, USSD, SMS, data (GPRS/EDGE/3G), signaling. Actually, ofono/ofono-ril stack is used: all things that it able to do on the n900.
- bluetooth (scanning, can pair devices. I didn't test deeper).