I think at that point, he is primed to be the PERFECT 2012 candidate for president.
let's face it, you repubs tend to talk about how much you love freedoms and the constitution. Then, when primary time rolls around, you put up three RINOs like Mccain, Romney, and Rudy (all with histories of liberal positions and actions). When a true conservative like Ron paul arises, you let FOX shit on him, and obediently nod your head when they say "he's just not viable!"
Your 2012 frontrunners? Lib Romney. Lib Palin (sorry, she supports amnesty, capping emissions, and the bailout, and says Romney and Steele are just peachy!) Lib Scott Brown? They're all the big "viable" names, right?
Ignore guys like Thune and barbour - FOX gives them a fraction of the time they give the RINOs, let's admit it. We saw it in 2008 when they ust gave all the airtime to the RINOs. Guys like Tancerdo and Thompson - ignored.
So anyway, back to my point... if Crist runs as an independent, then he'll be a lt gov, gov, and senator... very well spoken, coming from a key state and owning a history of moderate positions and working across the aisle. People on the left like him and would vote anti-obama at him. Repubs will vote in the RINO that Hannity tells them he likes best, let's be honest.
If Crist runs in Nov 2010 and wins the Senate job, I say he could win that 2012 nod and beat Obama.