N73 - Slippery joystick, small keyboard.
N70 - Tiny keyboard poorly laid out, all blue keypad lights.
N80 - Appalling D-pad, terrible GSM 900.
N72 - Microscopic keypad
E70 - Worst joystick ever, '2' key thumb fouls fascia.
6630 - Excessively curved key arrangement made keying on the LHS...