The Nook Color is pretty different from other Android devices - it's locked down by B&N and they're planning on opening their own app store for it. It's also missing menu, back & search buttons, found on every other 2.x device.

In addition, it isn't being marketed as an Android device.

You mean like these guys http://androidandme.com/2010/09/carriers/v-cast-app-store-to... http://phandroid.com/2010/04/13/vodafone-opening-up-shop-wit...

I can't say I remember any of the Droid marketing mentioning running android either. It is a little different but not that different.

If you take a look at the Barnes & Noble site for the Nook Color, you won't find a single mention of Android - it's pretty clear that they do not intend to be a part of the Android ecosystem at all, unlike the Droid.