You can even read both books (thanks to free apps from Amazon) on your iPad, iPhone, Android, Mac or PC.

FORBES: The Risky Business School of Leadership

It was just last October that Apple allowed in-app purchases for free apps, effectively allowing for sales of virtual goods on the iPhone.

FORBES: U.S. Virtual Goods Market Will Pass $2 Billion In 2011, Study Reports

Ford has done well to encourage developers to tailor their services for Ford SYNC, courting them by releasing a free API, and maintaining the apps fundamentally just need to run on the iPhone.

FORBES: Ford And GM Forge Different Wireless Paths

All Kindle books are "Buy Once, Read Everywhere"-customers can read their Kindle books on Kindle devices and on iPhone, iPad, iPod touch, Android and Windows phones and Android tablets using the free Kindle apps.

ENGADGET: Amazon's new Kindles now available in Canada, Paperwhite starting at CAD $139