Approaching 60% in MD, NY, CA, IL, VT, CT and Iowa? He could very well lose the EC and win the PV if this pattern continues.
The problem is, McCain has his own share of "close to 60" states. The latest poll from TX is McCain 57%, GA - 57%, TN - 59%, KY - 57%, AZ - 56%, SC - 58%, AL - 60%, OK - 59%, NE - 60%, UT - 65%, WY - 66%, ID - 62%. So, if anything, it could go eiter way 
But places like Wyoming and Idaho have next to no population, while NY, CA and IL are among the biggest in the nation. Furthermore, if you compare to "traditional" results Obama seems to have gained disproportionately among safe states on either side. But I still expect the popular vote and electoral vote to match each other more or less. If they split, I think Obama is more likely to win the PV and lose the EV though.
Not really since Obama is running just fine in the states he needs to win. He seems to be doing above the national average in Colorado and Virginia seems to be creeping to about where Ohio and Nevada are. Also Nevada could turn out to be more democratic on election day than expected. I still think Obama has a structural advantage in the EV this season. That being said if anybody wins the PV by more than half a point, they will find some way to win the EV. Things will fall in line.
