Iron Man Revealed!
Now (thanks to Jeff Cole, who sent me the links) we have images of the armor being used in the movie, and it's totally megacool. Check it:
This is the Mark I armor, the first design. In the comics, it was built out of junk and spare parts to keep Tony's injured heart beating and help him escape a Vietnamese military camp. I'm surprised at how faithful this design is to the original comic.
This is the Mark III design, the current model, and the one we should be seeing the most of in the film. It's nearly identical to the suit he's wearing in continuity today.
I am so very pleased.