That's very true and that may switch some of these states to swing or blue status, in terms of presidential races, depending on the number of those on the left who move there. However, this will provide a big boost to the Republicans in the House and may very well allow them to take it back in 2012. The states that have Republican legislatures will have Republicans redrawing the districts and they will naturally draw them to favor the Republican party. This is why we need independent commissions to draw Congressional districts so that neither party can choose who their voters will be. It should be the voters choosing them.
You're very right about independent Congressional districts. I'm tired of gerrymandering. I don't know how pro-GOP people will be feeling in 2012. In 4 years politics could change drastically (hey, nobody expected an Illinois state legislator to be a presidential frontrunner!)