Though a few Android tablets came out in 2010—the original Samsung Galaxy Tab stands out—all of these devices ran Android 2.2 or earlier, operating systems that were designed for 3- or 4-inch phones rather than 7- to 10-inch slates. All that changed last spring when Google released Android 3.0, a version of its operating system that's specially designed for tablets. Codenamed Honeycomb, the new operating system featured such large screen-friendly features as improved task switching, dual-paned apps, and a button-free interface
With the release of Honeycomb came scores of new devices from companies such as Acer, Lenovo, and Toshiba, none of whom had released an Android tablet before. By the end of the year, consumers had more than a dozen major Android choices, including some with 4G connectivity and quad-core processors. Unfortunately, there are still only about 5,000 Android apps designed to take advantage of tablets' larger screens, compared to 140,000 iPad apps.