The iPad is a fantastic tool for reference. Anyone from students to professionals to hobbyists can have useful information right at their fingertips. Many of these apps are universal, so if you have more than one iDevice, these apps are doubly useful. We’ve updated this AppList since its debut last year, but of course there are new and fantastic reference apps coming out every day. Yes, the iPad really can help you get smarter! The app store has plenty to offer to those looking for more than games and entertainment. Here are a few of our favorite smart apps.