So a friend of mine asked me what I thought about the last episode of BSG (he watches it on the web and hasn't seen it yet), and I told him it ended pretty predictably. They tied up most of the loose ends, except for one where they basically said, "it's a mystery!!!1" which was kinda lame.
Then he said, "I always thought it'd be cool if..."
(
spoilers if you don't know who the 5th Cylon is... )