I think Hank comes out like nothing is wrong. Everyone goes home. Walt goes to the washroom to make stool and sees that the book has been touched. He opens it and sees the writting that Hank saw. Walt then knows what he must do...
I can't remember the website, but I read an interview where Vince confirmed that Hank was indeed aware of who Walt was now.
The best part of the season starting in Sept is that I leave for vacation right before it starts, and come back 3 1/2 weeks later. So when I get home all jetlagged and have my extra day off to recover, l can sit on my couch and watch 3 episodes in a row!
