Saw it earlier this afternoon. I didn't see the first Hulk movie, but this one really seemed to be unresolved and focused more on setting up future Hulk movies. If anything, it reminded me way too much of the first Spiderman movie and almost ended the same way, where the villian is defeated and the love interest is pushed aside.
For those still going to see it, there is no scene at the end of the credits like in Iron Man. I thought there was going to be an extra scene with Robert Downey Jr, and it was at the end of the movie.
In general, it was kind of a letdown compared to Iron Man, but I still have high expectations for Dark Knight.