The award-winning line of Dr. Seuss digital books, including two of my personal favorites, The Cat in the Hat and Green Eggs and Ham, features a cool new function that lets parents read the stories while the app records your voice. You can then share the recording with friends, grandparents, teachers, etc.
As someone who travels often for work, this app is so useful — I can record my voice reading the stories so my wife can play it for the kids at bedtime.
The updated app costs $3.99. Worth every penny.