Every new owner gets excited about having an iPad, as we spend hours searching for and downloading new apps. However, when you consider it, you probably use very few of the apps. iPad maintenance is important for monitoring how much space you're using.
If you're traveling for an education related conference it's important to pack light so you're not weighted down with too much class material. Remember, the point is to enjoy the conference. You'll need to find a clever way to make the most of your spare time.
Some major textbook publishers have already started making content available as an example, with many more texts planned - especially high volume texts that are used by millions of K-12 students around the country.