Yesterday's launch of the white Lumia 800 has been accompanied by a number of handsome press photos from Nokia, one of which turned out to actually be of an unannounced white Lumia 900. The Finnish phone maker's official Facebook page is currently graced by the unmistakeable visage of the 900 in white, on a post that actually links to a Nokia Conversations article about the white Lumia 800's design. It's evidently, therefore, a slip-up, but we doubt Nokia would go to the trouble of creating press images of a white Lumia 900 without actively planning on releasing such a device. So the major question now is, when? Oh, and since the AT&T logo is missing from the top, perhaps it'd be fitting to also ask, where?