He started community college in a city 50 miles away this year and after some "bus training" by his father, he wanted to ride the buses alone. He made it there. He made it there happy and pleased with himself, even though the second bus of the trip broke down and he had to wait with the other passengers for another vehicle.
I posted to aspecialparent about the way I felt waiting for that call, and a short update, but now I've also put up a new post at The Speed of Dark blog.