I finished Ender's Game this afternoon. 1984 was the first book I read in which I had to just pause and reflect at the complete genius of the book and ending. Ender's Game is the second.
So glad you are loving Ender's Game. One of the top Science Fiction books of the year in my opinion. When you get through with it, I would love to discuss it with you.
Then I watched the movie. What a crap job that was.