An interesting way to enhance books for children. Also brings up the interesting issues of the whether or not the add-ons will have value over time, as they may not last forever and that the book must be able strong enough to stand on it's own over time.

I saw this last spring at a meeting I was at, so this might be old news to everyone here, but I thought it's such a great illustration of what magazines can do with the iPad. Since I don't have an iPad, I am not even sure if this is what an actual SI iPad issue looks like. Anyone know?