- The introduction of the Retina Display makes reading on the iPhone 4 more natural.

- iBooks is a free download

- The reading and browsing experience is the same as on the reading experience on the iPad, just on a much smaller screen.

- Go to bookshelf and pick book to read.

- To move through a book, swipe your finger left or right to turn pages.

- To access the menu, tap the screen.

- Font size can be cranked way down, but it's hard to read on such a small screen even with the Retina display.

- The backlight will still pose a problem for long-form reading for some.

- Syncs books and bookmarks with your iPad.