I preordered from Amazon in March, and I just received my copy. It wasn't easy, though. I noticed that USPS tracking showed it as delivered, but I didn't have it. So I drove around the neighborhood until I found the mail carrier three streets away. He was a lost-in-space substitute, but I spotted what looked like the package in his van, and he gave it up. I hope others don't have to go through this.
BTW it's 416 pages long, not the 464 as in the Amazon description.
I've had a couple of other Power! books and was very happy with the quality and thoroughness, so I'm really looking forward to getting into this one.
Mitch I.