Thanks Heather. Of course there's hope that he'll get memory back, but he hasn't yet. He actually remembers nothing prior to the accident. (which I didn't fully understand until recently).
On the positive, he can talk. And feed himself. Also, he can learn. He already knows some letters and numbers. If he can fly, I'm going to take him up to Montana to visit my folks and relatives. He doesn't handle noise well, but I have a set of really good Bose Automatic Noise Cancelling headset. I'll be curious if he can still manipulate the controls of the plane.
I'm afraid that everything he will remember about his life will come from stories, videos, and pictures.