I have been keeping track of every poll, just as I did in 2008. There are too many tables to port to this site, but you can read the entire date here at my politics blog
http://rosenthalswelt.blogspot.com/2011/07/electoral-landscape-as-of-end-of-june.html33 states have been polled since November 2010 and until now, the electoral map is pretty much looking as it did in 2008, especially in VA, NC, PA, NM, NV - all key battleground states going into 2012.
The only pick-up from 2008 that has not been polled at all is: IN.
Hope this information helps.