I would not be surprised one bit. I live right outside of Philly and the Obama signs are almost completely absent! 5 or six on my commute into Philly. I think the independents who voted for 0 last time will get over their pride and vote Romney. Especially when it looks like he might win. They just want to be part of the winning side.
I live in PA..I have never seen as many signs in any year
as I see Romney signs..