I do too. It's entirely in keeping with Obama/Axelrod/Jarrett practice from Obama's IL campaigns. Romney should expect it and be ready with a counterpunch.
Mitt is probably going to learn from this that NOT revealing 12 years of his taxes is going to leave him little time to do so when the Democrats do that just 3 days before the election.
Not enough time for "catch up" explanations ~ and they'll still get that 10%.