Temo che stavolta sarà più difficile per i "cuochi" poter anticipare i produttori. Cito da Building for devices | Android Open Source :

Starting with IceCreamSandwich, the Android Open-Source Project can't be used from pure source code only, and requires additional hardware-related proprietary libraries to run, specifically for hardware graphics acceleration.
Official binaries for Nexus S, Nexus S 4G, Galaxy Nexus, and PandaBoard can be downloaded from Google's Nexus driver page, which add access to additional hardware capabilities with non-Open-Source code.
There are no official binaries for Nexus One, ADP2 or ADP1.