We just went for a visit at the school today. He got to play a bit on their playground, which he loved. I know he doesn't understand that I won't be able to stay when he goes for real, so that'll be hugely traumatic for both of us :-/
Thanks for sharing that your son adjusted so well. My mother has been putting doubts in my head this weekend, telling me he's too young, etc., so I need encouragement that I'm doing the right thing. I really don't think waiting another six months will benefit either of us.