App upgrades The nook iPhone application is available for free in Apple’s App Store. In order to use the application, users must first register an account for free with Barnes and Noble.

“Barnes & Noble has long-standing relationships with the leading periodical publishers and works closely with these partners to bring Nook Color customers access to the most popular magazines ...

But should you choose an Amazon Kindle or a Barnes & Noble Nook reader? We compare the two brands to help you choose. Let's ...