To offer kids a way to read via Kindle, Amazon is back with another $99 bundle. The Kindle for Kids offer combines the latest e-reader with a cover and a "2-year worry-free guarantee." It's meant to boost reading habits for children complete with tools for tracking reading goals, building vocabulary and access to 250,000 kids titles. Users can also borrow digital versions of books from their local library. Unlike the regular Kindle, this model doesn't come equipped with a backlight so it can't be used in the dark. When the lights are turned off for bed, reading time is over.