B&N, the popular ebook distributor, has it's own Android application - Nook. The company has several Android devices and is this application is an expansion to other devices.
The Market description is as follows.
Shop over two million books at Barnes & Noble, take your library wherever you go
Barnes & Noble presents NOOK for Android. Now you can access your favorite NOOK Books, magazines and newspapers, right from your Android smartphone or tablet.* Shop over 2 million titles including everything from hot new releases to bestsellers. Plus, get instant access to hundreds of FREE NOOK Books, and sample any NOOK Book for FREE. Try any magazine subscription on your Android tablet* – including your favorites from Us Weekly and O, The Oprah Magazine to National Geographic and The Economist – all FREE for 14 Days!
Updated with an optimized design for Android Tablets, NOOK for Android lets you customize your reading experience, turn pages with a flick of a finger, and search for words in a dictionary. You can also side load your own ePub files, and it's the only app with an in-app eBook lending feature. It even comes loaded with 5 free books.
Best of all, you can take all your reading with you, wherever you go.
Better than Kindle or Kobo, ZDNet says Nook for Android is at the “top of [their] ebook reading application list”, -Aug 2010
Customer Favorites include -
Entertainment / Celebrity: Billboard, Rolling Stone, Spin, Us Weekly, Hollywood Reporter, OK! Magazine, Star
Home / Lifestyle: Martha Stewart Living, O: The Oprah Magazine, Dwell, Every Day with Rachel Ray, House Beautiful
Food: Saveur, Every Day Food, Food Network Magazine, Food & Wine
Fashion: Elle, Cosmopolitan, Marie Claire, Harper’s Bazaar
Business / News: Bloomberg BusinessWeek, The Economist, The Harvard Business Review, Fast Company, Newsweek, Forbes
For Men: Maxim, Esquire, Car & Driver, Men’s Fitness, Outside, Men’s Health, ESPN the Magazine, Men’s Journal
Technology: Popular Science, PC Gamer, PC Magazine, Maximum Tech, Information Week, MacLife, Maximum PC
General Interest: Consumer Reports, Family Circle, National Geographic, Reader’s Digest
Newspapers: USA Today, The Washington Post, The LA Times, The Chicago Tribune, the Onion
With such experience in the ebook business, I would expect B&N to develop this app to quickly develop even further. With new competition such as Google Books and Amazon Kindle, the ebook market on Android will be something to watch in the future. I would certainly expect to see applications becoming increasingly better in the months ahead.