The B&N e-Reader is Barnes and Noble's answer to all the e-Book readers that have hit the store since launch. Barnes and Noble are now offering their own easy to download library of books along with a reader to accompany it. The app pretty much runs the same as Stanza or the Amazon's Kindle app as it involves flicking to reach the next page, in app downloading, and different options for font size and readability.
Users can download entire libraries of books right onto their device for mobile reading. Each book downloaded is stored in your personal online library of books so that anytime you switch devices or need to redownload, you have them all there. There is even a coinciding Mac or PC app that allows users to read their books on their computers as well.
There really isn't too much that's different between this free e-Reader and others like it. It does have a very handy feature that I haven't seen yet in another app though. Users can select any text in a book and choose from many options. The text can be looked up on Google or Wikipedia, it can be highlighted and users can even leave a note about the text. This is great for someone who likes some educational reading or students who want to take some notes on a specific area in the book and have them always available.
Overall, the B&N e-Reader is just another e-Reader app with some cool features. It's free, but naturally the books cost money. Check it out. It comes preloaded with some classic titles.