Android. Google's OS excels at search and mapping and includes GPS-based navigation, usually a free app. Android supports large touch displays; we've seen it on phones with 4.3-inch screens. Customized via widgets, it can gather and present in a single view contacts, calendarappointments. and other data from a variety of online sources. Apps folders conserve desktop space. Some Android phones support Flash video, which can enhance Web browsing, video chat, and real-time updatesfrom the Web and social networks. APPS There are more than 100,000 at Android Market, and you have the rare ability to buy apps outside the dedicated store.It can access the Amazon MP3 library.