This isn't to say it's been easy. It's not. It seems the only time he's not happy is between 1 and 3 AM. Regularly. But then you see him when the sun comes up, and he's got another big smile for you.
Henry is constantly moving and crawling, and will start walking soon enough, we're sure. He's the world's greatest reason to baby proof. When he sees an opening, he goes for it. He doesn't get frustrated. He points at things he likes. He's pointing all day at this point.