Hasn't been doing so well, but the future looks bright. The fluid in his lungs was working its way out and by morning the x-ray was looking good. Then he started having trouble breathing again and couldn't keep his blood oxygen levels up, even while on a ventilator. The doctors pulled the ventilator tube to see what was going on, and found out that it was plugged up with mucus.
Once the ventilator was removed and he was just back on oxygen, he started doing better, but still couldn't breath normally on his own. After another x-ray, they determined that while the ventilator was clogged, his lungs had gotten hyper-inflated. We waited a couple hours to see if the extra air would get absorbed, but it wasn't going away. So the doctors did a procedure to insert a tube through his side into his lungs to allow the extra air to escape. He seems to be breathing much more normally now. If everything heals up and he doesn't get infection, I think he'll be a fairly healthy baby.