One thing I find more annoying then a chatterbox is a person who can't type proper english. Messages like this:
plz cum 2 ma plaz @ aftrnun.
People, please quit typing like that even in cellphones. It does not make you look cool, its retarded. It will usually make people go "what a ****wad". Unless you are in a situation that demands quick transfer of txt messages, please write proper english.
entire premises of SMS will fail if people write in any flawless language, i.e. ingaalish
ps. its not english, its IM.