He talked about the suit and what it is going to look like. He said it will be very traditional, but that it will take advantage of the things that were learned on Spiderman. He said that spandex tends to remove definition from someone's build, and that they are going to have to shade the costume to add the effect that the actor is more toned than he really is.
He also talked about how he and his writing partners crafted a story which could be compared to Tim Burton's Batman (1989). He said that he is going to have the first two films serve as a sort of vague history, and that this next film will pick up after Superman has been gone for 6 years. He said that the story is going to approach Superman as sort of being a returning Messiah (sp). Singer also had an interesting comment that people in the movie sort of wish that Superman had never existed, because once he disappeared, the world fell into chaos.
Singer also divulged some really cool stuff about some sequences and some of the riggs that have been constructed. He said that they have created a rigg which has the capability to "fly" the actor at speeds of up to 40 mph a distance as far as 3 football fields!!! It was amazing stuff, and he said that almost all of the major sequences have already been pre-visualized.
I am not sure that he said much, else; but he pretty much confirmed that Routh has been cast.
One last thing I am remembering; he said that he really wanted to have Reeve make a cameo, and that because they are shooting in Australia (this was his idea before Reeve passed away), he was going to try to do something similar to what was done for that SuperBowl commercial a few years ago; using CGI he was going to try to have Reeve make a cameo while walking! Really exciting stuff!