So the fantasy world-building of Harry Potter continues, even after the series is officially over. Here's some more back story (so enticing to those of us who just can't get enough). Although I'm not, personally, given to speculating overmuch about the sexual orientation of characters in the books I read if it's not an issue in the novel, it is interesting. And a bit sad, to think that among all the other burdens Dumbledore has shouldered in the course of his life - his sister, his relationship with his brother, Harry, his responsibilities, etc. - he's also had to live with a broken heart. Rowling said that Dumbledore was "horribly, terribly let down," and that his love for Grindelwald was his "great tragedy."
And here is a link to a silly, sweet article listing seven clues that Dumbledore was gay. I liked the part that said that "Even the most diligent 'Harry Potter' scholars found themselves caught unaware." And the anagram that can be made from the letters in Dumbledore's name. Too funny!
Here is the full transcript of her revelations, for anyone who's interested.