[nextparadigms]

By now Android supports most of the ARM chips architectures. The only case where this might not be true is when a completely new one appears, and Google chose to launch with another architecture and not support that one. But even then, the chip maker will do most of the work to support the latest version of Android.

[joenathan]

You really don't know what you are talking about, Android is only originally built around the Nexus device Google is launching with the particular version of the OS, it is a huge effort to make compatible drivers for all the different pieces of tech that goes in to the different Android devices. Hence why it took so long for the Nexus S to get Android 4.0 Ice Cream Sandwich, not to mention the plethora of other devices still waiting on a port.