Android is by design said to be totally HW platform independent. The whole idea of Android is to have it suit to the HW platform you put it on - whether you have a GPS unit or not, or a GSM module is totally not important.

So basically, the only obstacle I would see to have Android run natively on a N8xx is Nokia's capacity to provide openly some detailled HW specs allowing a compiled Android version to access all of the N8xx's features (HW features).

I know already I will buy the 1st Android 'system' to become available - obviously this would be HTC's G1 since no other are announced yet. I'm not at all interested in itsphone capabilities, but the kind of applications planned (see contest winners as an example) and flexibility of the whole environment.