HA HA. I'm glad to hear that! 
I'm considering adding new features and which might make it more useful.
Hey, great! I'm glad you like my website.
It's probably still useful. There's really only one section that's really obsolete. That's the Hype-To-App section. I wouldn't use that code. Wrapping is so much better. The slide puzzle is also... ehhh... I probably could make that better. I don't think it needs sliced images. Last time I tried to use Pixelmator to slice an image, it crashed. So, I've been thinking about rewriting the tutorial to use a single image.
At some point, Hype 4 will be released. A lot of the information in the book is still the same. But because there are so many new features in Hype 4, I really should update the book.
So, to be fair to the people that already bought the Hype 3.5 book, I'm thinking of shutting down sales while I write the Hype 4 book. (I'm not doing anything right now as Hype 4 is still in Beta. I'm waiting to see what happens with Physics, as that could dramatically change the direction of the book.) It will probably take me 3-6 months to create a new version of the book.
Note: There's still a possibility I won't write a new version of the book. It takes a tremendous amount of energy to write a book. I'm not sure if there's enough demand to justify the work involved.