Use myiBook Widget to display the latest comments from your friends who has signed to your iBook.
MyiBook Social Network is: a new mixture of guestbook, shoutbox and comment system for your website & personal blog's article, social bookmarking or online bookmarking system. It lets you build your own social network on the Internet and to improve popularity of your website.
With MyiBook WordPress Widget, you can show your latest iBook messages signed by your visitor or friends. It will display the last N posted messages (you can modify the setting how many posted/signed messages to be displayed).