[Wormius]

I kind of expected that ending, but I thought Walt was going to call Todd's uncle back before surrendering himself to save his butt.

I am now starting to think that the ending will involve Jesse getting kidnapped to cook for Lydia, Walt going to rescue him and taking the ricin himself, before trading himself for Jesse. Or he might be planning to really confess, so he just takes it and he can die before going to prison.