Did the last shot of the plant type that was used to poison Brock imply that Walt poisened the boy and framed Gus in order to get Jesse angry to help kill Gus and/or lure Gus to visit the hospital?
I'm not sure if I'm over thinking this or not.
Anyway its pretty clear that next season Walt and Jesse are gunna become the king pins again since now the White family has almost no money left (but they do have a car wash!)
I think the best quote was:
"You two can go ahead and stick your wangs in the hornets nest.. I mean its a free country but don't leave me the sloppy seconds." -Saul Goodman