I'd say it's safe to say he's move beyond Charlie Crist and is looking forward to the general election.
I normally hate, "do it for the children" appeals but if the thing we should be doing for them is 'stand up to Obama, not join with him', then I'm in. A very sweet ad, with a great partisan punch...nicely pulled off.
An independent Charlie Crist bid for the US Senate would work to Marco Rubio's advantage, because Crist would win more Democratic votes than Republican ones. In a hypothetical three way contest Rubio leads with 34% to 27% for Crist and 25% for Kendrick Meek.
Crist gets 32% of the Democratic vote but only 18% of Republicans running as an independent. He also leads among independents with 35% to 24% for Rubio and 22% for Crist.
Crist's overall approval rating now is a 35/51 spread. He's most popular with Democrats at a 45% approval rating followed by independents at 29% and Republicans at 28%.
Right now PPP has Rubio up by 5 or less in a heads up contest with Meek. Still given where Rubio came from against Crist, there's every reason to believe as more people see Rubio they will like him. That's why he's already started pivoting to position himself for the general.