Total bummer. One of my favorite authors, Arthur C. Clarke, died. I was never a huge sci-fi fan until I read Rendevous with Rama and Childhood's End. He and Robert Heinlein opened a whole new genre to me, planting some fairly wild literary seeds, allowing me to push past the formulaic fiction force fed in junior high and high school.
It sucks to think there will never be another novel by Clarke... Really sucks.