Not to seem like the evil raincloud blocking the ray of sunshine, but what would ten to twelve year old(s) being doing with cellphones in the first place? Maybe I am just a bit more old fashioned as in my day when I was a child, I didn't have/use a cellphone. Wouldn't more children be improving similar language skills with the use of the internet on a computer, as internet itself is usually- unless I am mistaken- cheaper or around similar price to a cellphone bill(or roughly close to for that matter.) I'm sorry, but I can't really see this in light of being something that improves or helps children. The low study and basis in grouping isn't very reassuring either. When I think of people of that age using cellphones and doing text speak, how much are they learning from 'k, thx, ttyl, how goes, lol,' so on and so forth? Again, maybe it is just me in seeing such in a perspective, and I am not trying to per-say, dumb-size the younger generation or anything, but I really don't see this as a way of improving language skills for children. ;\
Come on.. Really...? Ten to twelve!!!!!! Doesn't that speak for itself?