Enterprise Mobility: Android, iPhone, BlackBerry Apps for Post-Labor Day Productivity

Google Android, iPhone and BlackBerry owners know that summer's a time for fun mobile apps: navigation programs for finding that new vacation spot, games and e-books for whiling away the hours once you're there, restaurant and event finders for nighttime. But now Labor Day's upon us, and that means it's time to head back to work. Fortunately, Android, iPhone and BlackBerry all offer apps for ramping up your productivity quickly—whether it's creating a new to-do list, setting an alarm or syncing your files between devices. In a sign of all three platforms' growing prevalence among business users and generally work-minded folk, their app stores have filled with an ever-broader variety of programs designed for just this sort of thing. The following apps are all free, although some offer for-pay versions with more features.