I've not attempted any of those methods, so I don't have a personal basis for judging them, but I'm interested in what those of you who have tried them have experienced. What are the approaches (non-sound-based / non-ASL-based) that work for you and your pre-literary children or how did they work for you when you were a small child, before you could write well?
Given the small number of ASL users and the even smaller number of CIs vs. a large # of deaf children born every year, I'm thinking there's got to be a large number of deaf children communicating without either sound or sign. What's working or not working for those of you experiencing this?