I was thinking about that scene where Sawyer tells Widmore that he would get UnLocke to Hydra Island so Widmore could kill him. Widmore smiled but neither confirmed nor denied his intentions? Could it be that he really wants MiB there because they are on the same side? Of course, the counter to that is the pylons they were building...but that could have been to control where MiB could go...perhaps to keep him on the island? So, whose side is Widmore really on?
I also thought about if both Widmore and Ben on Jacob's side, it's almost as if they are two siblings trying to get daddy's attention. What do you think?