While geared toward kids, National Geographic's Weird but True! is a treat for anyone with an iPad who enjoys perusing random trivia. Shake or swipe the iPad within the app to get a random interesting fact, then rate it based on how weird you think the fact is. You can bookmark facts you like, email them to someone or use a fact finder to look for something specific. You also can see weekly top weird facts as rated by users.
Weird but True! has 300 facts, and I can see future updates adding more. The type is large and easy to read, and the graphics are catchy and have the same professional quality as National Geographic magazine. If you want an educational trivia app for the iPad, Weird but True! is a good deal for US$1.99.