the Sony Ericsson Xperia Arc features a 1GHz Qualcomm Snapdragon processor, a 4.2-inch 854 x 480-pixel touchscreen display, an 8-megapixel camera with flash and HD video capture, the Android 2.3 (Gingerbread) OS and a slim contoured body measuring 8.7mm at its thinnest point.  Nice but how much?