*Spoiler* If you haven't gotten that far in Doctor Who. But when I found out that he was The Face of Boe, I kind of figured it out before, but it was still a big surprise. The people of BBC really do know what they are doing.
I feel like everyones so focused on Amy and Eleven or Amy and Rory, that they forget that the Doctor and Rory were also best friends, and you know what breaks my heart, he never got to say goodbye. And also, the door was always tardis blue