Inkling is an e-book publishing platform that's currently running an app on the App Store, and while Apple has been making an official push for more textbooks in iBooks, Inkling is strengthening its own holdings. The company has made a deal with Follett to bring hundreds of Inkling titles into college bookstores, where students can buy the ebook content right there in person.
The company is selling whole textbooks, or it's also offering a program called "Pick 3," which allows students to grab three chapters of a book at a time, keeping costs down if teachers or students don't need the whole book. Overall, this may not be cheaper, however -- don't forget that students who buy real books can often have a chance to resell them, or can buy them used, and with ebooks, there's obviously no resale value.
The Follett deal should be ready by the time students head back to school in the fall.