Rumours have been flying around that Nokia has been building an Android powered device - there is a huge demand for it.
The notorious @evleaks twitter account, known for very many rumours that have later become true has leaked Android running on a Nokia.
As expected the UI is pretty different from stock Android. It's as flat and minimal but features a lot more colour. There also doesn't seem to be a home or multi-tasking button, only a back button.
Nokia may have actually been working on an Android powered device but with its recent acquisition by Microsoft, the possibility of seeing one going for sale are slim, most probably impossible.