Where would we be without prototypes? One such pre-production unit, of Samsung's hotly anticipated Galaxy S II, has escaped into the Russian wilderness and has been thankfully rescued from the cold by the guys over at gagadget. Apart from squaring it up against the Sony Ericsson Xperia X10 -- which we can only surmise was the nearest available Android handset, it surely can't have been the best -- they also dig pretty deeply into the latest TouchWiz UI and dish up a thoroug