I have to agree with you Ryan, Rowling is a brilliant writer and I think in the next book there will be more explanation as to what REALLY went on. The main reason I think this is that in all the books she has made Dumbledore out to be smart and observant, and he has always trusted Snape. Every time we thought Snape was "the bad guy" he always came back to save Harry. I don't think there is any way that Snape just switched sides without Dumbledore at least having a clue. I, too, can not wait for the next book (even though right after finishing I was swearing to Jay I would never read another Harry Potter book again
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