As has been documented, Gallup determined a flaw in the polling methods after that election. They've been pretty accurate since.
Oh I agree. They’ve got an excellent likely voter screen. Gallups numbers in 2008 had me convinced McCain was done a week before the election despite all the protests to the contrary. I anxiously await their new poll. But I suspect it will tighten from where they had it because the independent numbers are trending away from ROmney a bit. Hopefully not too much.