This week, Samsung's Galaxy S III phone will go on sale in the U.S. The Galaxy line has emerged as a leading competitor to Apple's iPhone. Available in pebble blue (pictured here) or marble white, the design is dominated by the 4.8-inch HD Super AMOLED screen (1,280 x720 pixels). On the whole the display is pretty, but it's dimmer than we'd like and too reflective. There are seven home screens that you can customize with app icons, folders and widgets.