Beginning Android 4 is an update to Beginning Android 3, originally written by Mark Murphy. It is your first step on the path to creating marketable apps for the burgeoning Android Market, Amazon's Android Appstore, and more. Google’s Android operating-system has taken the industry by storm, going from its humble beginnings as a smartphone operating system to its current status as a platform for apps that run across a gamut of devices from phones to tablets to netbooks to televisions, and the list is sure to grow Smart developers are not sitting idly by in the stands, but are jumping into the game of creating innovative and salable applications for this fast-growing, mobile- and consumer-device platform. If you’re not in the game yet, now is your chance!