win7 tablet, cellphone for a keyboard

[michaelleewebb]

i have a fujitsu st4112 tablet running win7 and i would like to have a cell phone which could act like a keyboard for the tablet. vectir seems to be a program that could do what i'm looking for. i have "straight talk" as my cell phone service provider and in the area i live i have a chose between the following cellphones, all of the cellphones have a keyboard of some type (slider or on screen) bluetooth and are java capable. i don't know about the j-52 specs thing though. heres the list:
samsung:
r355c
r451c
t404g
from lg i can purchase the following:
lg 900c

has anyone made one of these phones work as a pc keyboard. and also with straight talk ???? from what i've read on the internet it could be a problem just getting the program on the cellphone.