Gallup has released weekly breakdowns of Candidate Support by Region for the week of Sept 1-7, which includes the RNC convention. My own analysis comparing these numbers to the previous two weeks (Aug 25-31: Post-DNC convention and Aug 18-24: Pre-DNC convention), it's easy to see:

The Palin bounce in national polls is being driven by a response in the South.
Even better news - over both conventions:

Obama actually gained in the crucial Midwest and West.
· WI-08: Wingnut plans to run as "conservative independent" (desmoinesdem)
· 50 percent of southerners say Obama better president than Bush (desmoinesdem)
· What Yesterday Says About Young Voters (Mike Connery)
· Max Blumenthal on the dysfunctional movement driving the GOP (Mike Connery)
· IA-Gov: Culver launches second tv ad (desmoinesdem)
· Hilarious Vid On Why We Must Vote No On Issue 2!! (Cliff Schecter)
· NY-23: Scozzafava Drops Out! (lipris)
· NY-23: Pataki Goes Rogue, Endorses Teabagger Darling Doug Hoffman (lipris)
· Dunne Considering Run For VT-Gov (Nathan Empsall)
· McGovern Grandson Looks to Challenge Thune in 2010 (Jonathan Singer)
· IA-03: Two potential challengers for Boswell (desmoinesdem)
· NJ-Gov: Daggett Goes After Christie and Corzine (Jonathan Singer)