A contrived fight between Jackson and Obama is unlikely to affect Obama's standing with black voters. On the other hand, some percentage of those white voters whose ignorance (rather than an assessment of the particular man's liberal views) would prevent them from voting for a black man might be more likely to consider backing Obama if Jesse Jackson doesn't like him.
It turns out that The Tim Man thinking that these remarks could be beneficial to the Obama campaign. Jonathan Salant, writing at Bloomberg.com, pushed the thought. These comments, Salant wrote, could give Obama "an opportunity to win over some voters who have been skeptical of his candidacy."
Salant quotes three professors in his piece. One of them suggests that this controversy emphasizes Obama's call for personal responsibility since that's what Jackson seemed to be peeved about. Another said that Jackson's comments could help show that Obama "is not a 'black' leader but just a Democrat running for president." And the third, David Schultz, either smelled a conspiracy or dumb luck for Obama suggesting that "Obama should give Jackson and [Bill] O'Reilly an award for helping his campaign with white voters."
Is there a conspiracy? Or is it just an honest gaffe that has given Obama an opportunity? Anything is possible.