We have had a big step! Finally, after months and months of working on this, Jonathan will finally sign "More". Our first SIGN!!! Of course, it is a very loose approximation of "More", but I'll take it!!! He is generalizing it to "anything I want to ask for", but it is a starting point. He has also been saying more sounds and attempting... albeit very sporatically... to imitate sounds. It seems like every day we see him do something new, which is very exciting!
Check out this video. It is very long (and I look like I have been living in a box of chocolates and I ate them all) but it is fun to see him do it over and over!!