I know it's hard to fathom, but this 47% fiasco won't change much in terms of voting blocs. Because to some extent, Romney is right. There DOES exist a certain percentage of the voting public that will not vote for him regardless.....all that other junk he said about "because they feel like victims, they feel entitled, etc, etc, etc" is nothing but right-wing dog whistling in front of a right wing audience, but the numbers he cited are actually pretty much right on the money.
There's a very, very small, but statistically significant portion of the voting public who truly are independent and -especially in the so-called "battleground states"- those are the people he needs to win over. I don't think you win them over with this kind of rhetoric, though.