Apple released ibooks which is a great way to read and buy books. The app is featured for the iPad.

“It has a bookshelf. In addition there’s a button which is the store — we’ve created the new iBook Store. You can download right onto your iPad.” — Steve Jobs

Five big partners… Penguin, Macmillion, Simon & Shuster… and more.

The format of the books being ePub.

You can flip the page by tapping anywhere on the right, change the size, or flip back by tapping on the left. Or, drag the page over manually using touch.

You could even select the font of the book by just tapping the screen!