I don't think this is a hoax in the least.
I think its a device running the Asha or Meltemi or WebOS or Harmattan... or a hybrid of the two or three or four.

I don't believe its Android.
I believe it is a prototype Nokia was working on to battle Lumia (ironic isn't it) and the Moto G's at the low-end. But it comes as collateral as MS invades into Nokia's business strategy.

Its possible... but much less likely is the fact that this actually runs Android.
It could've been a project Nokia was working on... but an "idea" that's it, not a business strategy they thought that applies to them any time soon.