I don't know if anything know about this yet and I searched and didn't come up with anything. This is a easy fix to add custom words to your iphone's dictionary. Below are examples. The screenshots should be self explantory. I had to edit out my Z contacts and my other 3 swear words lol..but I just added the word I want in the dictionary as first name and added a 1 as their last name so they are all sorted on the bottom of my contact list. Enjoy!!