okay....I just finished the book, and stopped my snivelling... I for one was totally shocked that Dumbledore died!!! I had heard so many rumors that Ron was to die, that I started believing it was going to be.
I, too, believe that R.A.B. is Black.
Something, though, that I didn't see anyone else bring mention to.
I think Ginny put a love potion on Harry....or she was just wearing it as perfume, since she was so "popular" with the boys, and everytime she came near Harry, it's mentioned that Harry smelled that same fragrance that he also smelled in the potions class when he and Ron? were first exposed to various potions. Not a huge part of the story I know, but just was surprised no one else mentioned it.
I, too, believe that R.A.B. is Black.