Three Little Pigs and the Secrets of a Popup Book (US $3.99) from Game Collage LLC brings something new to interactive children's books on iOS. The original book was published in 1904 and illustrated by L. Leslie Brooke, a popular illustrator of the time. Along with the usual wheels, tabs and spring loaded animated object that move things around, they included X-Ray Goggles (really a tappable button), that lets you see the gears, clockwork, springs and pulleys that make the animations work on most of the pages. This fits in well with the t
