DS version will be from...

[SpongeAlex]

http://gonintendo.com/viewstory.php?id=131537

Thor: The Video Game on DS is going to be a bit different than the other versions of the film-to-game adaptation. First off, it's going to be a 2d side-scroller. That's exciting in and of itself, but the news of who is working on it makes things even better.

WayForward, the guys behind Shantae and A Boy and His Blob are handling the development duties. These guys know their 2D gaming, so this project might turn out to be decent! Now, if we could only get a release date for Shantae on DSiWare...

They're also developing two versions of Batman: The Brave and the Bold for Wii and DS.

[SEGA Pingas]

Wait...you mean this is actually going to be a good licensed game? Well then, I might have to keep an eye on this one.

[AutoSaver]

INB4 rushed game

[Ghostal_Force]

INB4 rushed game

Nah, they have quite some time to finish it.

[AutoSaver]

That is what they all say.

[SEGA Dude]

AutoSaver, they're also working on Aliens: Colonial Marines, and have been since about 2004. I'd say there's no need to worry about the game being rushed.

[Paraloop]

Hideo Kojima, Shigeru Miyamoto, and Shinji Mikami could all be working on this game together and I'd still be skeptical if it would turn out good. It's a movie game and they've always gotta be looked at with heavy skepticism.