I'm not sure you want to be on his mailing list, so I wouldn't send him anything. Just read the book.
He has some interesting "idea generator" ideas, but you need to read through the first parts of the book to get them, in context, and get something valuable from the ideas he presents. It's all context.
And it is a fun read. Light, quick, conversational. Read it. Should be a bit of freshness after 7 Habits.
I also make sure to pick up a Seth Godin book any time I see one, flip to any page, and read for two or three pages. He is so consistently refreshing, eye-opening, and clearly spoken, that it would be hard to NOT get anything from his books.
I see them on friends shelves, pick one up, read a couple of pages, and they offer to loan it to me. "Nah.. thanks. I've read it. Just like reminding myself of how he writes and his clarity of expression."