Apple's iBooks 2 e-textbooks pack tons of info, take up tons of your iPad's memory

Apple just got done unveiling its new iBooks 2 platform, letting us in on its plan to revamp education (in part) through its fancy new e-textbooks. These digital volumes look beautiful and come at a relatively meager monetary cost ($14.99), but a quick perusal of the textbooks available in iTunes reveals they'll take a sizable chunk of your iPad's memory. The current lineup of eight texts range in size from 800MB to 2.77GB, so folks looking to grab a full semester's worth of materials may have to carry an extra iPad or three to get the job done. Not an ideal solution, but a few Apple slates are still easier to schlep across campus than those massive texts you're used to, right?