Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en_US) AppleWebKit (KHTML, like Gecko) Mobile [FBAN/FBForIPhone;FBAV/4.0.2;FBBV/4020.0;FBDV/iPhone1,2;FBMD/iPhone;FBSN/iPhone OS;FBSV/4.2.1;FBSS/1; FBCR/AT&T;FBID/phone;FBLC/en_US;FBSF/1.0]