This game certainly hasn't convinced me Man City will win the title, like.
The 1st half clearly demonstrated Man City's weakness - their manager. They will blow some teams away this season, yes, but if Mancini doesn't go for it more against more stubborn defences than Swansea, then they won't be getting their mitts on 1st place.
Swansea showed confidence and composure on the ball in the 1st half but they quickly wilted after they fell behind. The 2nd goal was awful defending, for example.