One of the headings on End22.com, a site devoting to "repeal[ing] the 22nd Amendment" (the one that limits Presidents to two terms). Their logo, judging by the site, seems to be a photo of President Obama followed by a photo of FDR.
I have no informed opinion on the subject of term limits for Presidents, and can see good arguments in either direction. Perhaps the voters should be entitled to choose Obama for a third time in 2016 (if of course they choose him a second time in 2012). Or perhaps the political power of an incumbent President can be made so great, especially if the incumbent knows that he may legally be reelected indefinitely, that the people will in reality have more choice if term limits are imposed.
But I am pretty sure that it's a bit early to get the public excited about "making Obama's third term possible," though maybe that's the slogan that's needed to get donations from the base. And more broadly, it seems to me that this is the sort of amendment that -- like the Twenty-Second Amendment itself -- should be drafted not to apply to the person who is in office when the amendment is proposed. Both as a matter of policy and politics, any such change should be focused on the principle, and not on allowing the reelection of any particular person.