Never bet money on tracking-polls because they are about as fickle as Romney's economic plans. With that said, there was a surge today on Gallup:
Gallup Overnight approval poll changed from 47/46 approval to 51/43
Head-to-head--7 day changed from 47/47 Obama to 48/46
http://www.gallup.com/...
I guess the 47% comment is finally being factored in.