20 iOS Apps for Students, 2nd Ed.

Thanks to its recent release, the iPad 2 is a gadget high on many students’ wish lists. But the iPad’s smaller cousins, the iPhone and iPod touch, are also quite capable. It’s clear that the iOS is a pretty successful mobile platform. Unfortunately, this means there are over 300,000 apps—covering different categories and genres—to choose from. Here are twenty diamonds in the rough that have proven their worth in the classroom.