Venom ??

To all the spiderman movie fans, it seems that Spiderman 3 will not have 1, but 2 villains. There is a lot of speculation over the photo below, that the person in the photo is not spiderman, but Venom.
If you are thinking that this is a Black and White image, then listen to the official sony announcement. Here is another pic to show the similarity in the costumes of the two (i.e Spiderman and Venom).

I really don't think that Sony Pictures would actually risk changing the costume of Spiderman from red and blue, to black.
One thing is sure though, Spiderman 3 will be having Sandman as one of the villains. IMDB has the cast listing, and only person (Topher Grace) is there without a specified role. So looks like he will be the one who will play Venom.