Marco Rubio (R-FL) says, per the St. Pete Times, flat out, that he is not open to the possibility of being the vice-presidential candidate in 2012.
Question: "Are you at least open to the possibility?"
Answer: "No, I'm not.
Pretty definitive, no? Sure, but honestly, what else is he supposed to say? He was just sworn in as a U.S. Senator, and the naming of a presidential team is a year and a half away.
Rubio continued, "And I'll tell you why I'm not. ... To be the senator from Florida is a big job. In addition to the votes you take in Washington of national importance, our state has a multitude of issues. I mean, it will soon be the third largest state in the country and perhaps the most complex in the country in terms of the set of issues it faces. In order to do that job, and do it well, you've got have to have 100 percent focus on it. You don't have time to sit around and daydream ... I want to be a U.S. Senator because I believe I can make a difference from that position. ... It's flattering sometimes, but that's about it."
Exactly. It's not a good idea, it's not in his best interest, even if he's interested, to fuel speculation.
So don't read too much into these kinds of statements from potential veeps. Remember, not a single GOP presidential candidate has announced yet.