Hey, that Zubat Koffing cross we saw in that picture was revealed along with three others. Coromori (ZubatKoffing), is one of the two that was named. The other named does not have a picture, but a bad interpretation on Bulbapedia. It's named Nezumimi. The other two we have toy images of.
http://bulbanews.bulbagarden.net/wiki/Oha_Suta_confirms_another_Pok%C3%A9mon_from_anime_leak
http://bulbanews.bulbagarden.net/wiki/New_Pok%C3%A9mon_revealed_in_movie_13_and_by_Bandai
Moar nu stuff.
These games will be available for preorder from July 31st to September 17th, 2010. I'm not sure of where, but I assume GameStop and possibly Wal-Mart/Best Buy.
http://bulbanews.bulbagarden.net/wiki/Black_and_White_pre-order_dates_announced
Also, a couple names of some Pokemon revealed in a game play video a while back. And, two new ones. One is a new Flying type, apparently called Hatopo. supposedly related to the new Normal/Flying type we saw earlier on named Mamepato.
The second has a name that apparently means Something mouse, because it's Japanese name ends in Nezumi. The mouse one is mostly blurred.
http://bulbanews.bulbagarden.net/wiki/More_new_Pok%C3%A9mon_seen_during_demo