The fight scenes are awesome and it actually feels like the hulk has a physical presence in the movie.  There are also a number of cameos in this.

Norton plays the part really well, as good as Downey Jr. did with Iron man. Its good to see that they are thinking ahead and taking marvel movies seriously now instead of creating short sighted product placement cashin's created by people who know nothing about the comics and staring unknown actors. I hope they do the same with Captain America and Thor because so far Edward Norton, Samuel Jackson and Robert Downey Jr. are looking like a great line up for the avengers movie.