Google always wanted to join the eBook bandwagon, and there have been a few rumors across the web to support the notion. And now finally it takes effect. The company recently launched the eBookStore with a list of 3 millions titles to start with. The eBook apps are available for Android, iOS (iPhone/iPod/iPad), Barnes & Noble Nook and Sony Reader. Of course it is also available for desktops via a web-based reading application.