According to this report at the USA Today site, the Romney campaign has rejected the Obama campaign's offer that it would ask only for five years' returns:
"It is clear that President Obama wants nothing more than to talk about Governor Romney's tax returns instead of the issues that matter to voters, like putting Americans back to work, fixing the economy and reining in spending," Romney campaign manager Matt Rhoades wrote in a response to Obama counterpart Jim Messina."
Okay, so now it's an issue that we have to keep in front of the voter. Remember the flip-flop sandals that Repub delegates trotted out and waved at the 2004 GOP Convention? Time for the Dems to have a stadium full of tax-form-waving delegates!