Change Input Method?

[Eric Siu]

hi all,
        I want to change the method of input from the keypad of palm to
UART for all applications. anybody can tell me whether it is possible or 
how to implement it !
        Thx!!!
        Hope U :-) every second!        

Eric                                            
                                                           
             Electrical and Electronic Engineering
       The  Hong Kong University of Science and Technology
                URL: http://home.ust.hk/~ee_slm