the Palm Treo 650 be a great pda for it be day . newer version and different brand have more of the `` latest technology '' and smaller size , but it be still a great cell phone and datum device . the free software to sync to outlook work great too . very cost effective compare to other newer brand sell today . if you be buy a use treo 650 , watch out for the earpiece and speaker phone . many have stop work , and repair be expensive . look out for whether it be a gsm -lrb- use a SIM card -rrb- or cdma version . you must have the correct one depend on your cell service provider . of course , that be true of all cell phone !