Maybe I should read the product description closer but I'm just curious as to how you're going to convince the spec that you're reading their minds while scanning through pages on an itouch. It strikes me that there are a lot more practical methods to performing a book test than this.
Actually I received an invite to a webcast where Alvo demonstrated how it would work. The spectator would have no idea you were even using an itouch. The method was really clever actually. It sounds like there currently aren't a lot of books available though so that could be a problem for now. But if you are able to add your own, then that's pretty cool. It sounds like as time goes by this could really become an incredibly strong piece of mentalism.