Mobilegeeks.de noticed this entry in a for a Nokia Lumia 1000 on a registration page on giant carrier China Mobile’s website.
All of the other devices seem pretty real, raising speculation that the Nokia Lumia 1000 may be one the high end unannounced Windows Phones Nokia is expected to show at Mobile World Congress 2013.
On a related note, the Nokia Lumia 520 and 720 has passed through certification in Indonesia. These will likely be Windows Phone 8 versions of Nokia 510 and 710 handsets, though how Nokia will get WP8 down to the specs and price point of the Nokia Lumia 510 remains hard to see. See that certification at Nokianesia here.