I don't see how anyone could think Romney 'won' that debate. In terms of issues/answers, all he ever really says is, "The economy's ******, I know how to create jobs, don't worry about the specifics of my tax/budget plan, I know how to balance budgets, I've done it before, trust me." That's his answer to seemingly every question. In terms of poise (which a lot of people use to determine these things), he seemed much more at odds with the moderator, and seemed increasingly frustrated when it was time for a new question when he still wanted to say more. He was fine when he had the floor, but seemed like a dick during many transitions to new questions/Obama's turn to speak.
It's not like he was terrible, but he seemed like a one trick pony (bad economy, I can fix it, trust me). Not many people are happy with the current economy, but it seems like his whole strategy is to say "the status quo sucks, trust me, I can fix it," which is retarded. Economies are not simple functions of simple variables that can be fixed immediately; if they were, a bad economy would never be an issue, since we'd know how to change it. He's asking the American people to blindly trust him, and never says much beyond that, which is a poor strategy, imo.
I'd bet my entire bank account he's not too thrilled about tonight's debate.