In other words, Romney leads by 5.
That was my first thought, too. If WSJ/NBC polling shows it tied, Romney must be light-years ahead.
That's probably correct.
As you certainly know by now, most polls this year (most definitely including NBC/WSJ) have chronically oversampled Democrats, usually by 7-8%, in line with 2008 turnout.
What you may not know is that many of the same polls have now taken to oversampling women voters by close to the same margin.
The poll cited here will not be released in its entirety until this evening, but I'd be willing to bet that the Male/Female sample is skewed beyond demographic reality (49%/51%).