The poll is from last month so I don't know why they just released it yesterday.
I can't post the link because I don't have enough posts, so just go to rasmussen dot com and follow it with:
/public_content/politics/elections/election_2012/election_2012_presidential_election/obama_41_ron_paul_37
Rasmussen's Other Polls To-date for reference:
Some interesting crosstaps:
Paul would need to shore up conservatives and Republicans in the general. He'd probably have to pick a Southern conservative (Governor Haley, possibly) to do so.
What I find most interesting though is that he actually BEATS Obama with the under 30 crowd. Other than Romney, none of the other GOP contenders even come close.