Even though Samuel can't lay flat after eating he can still play on his activity mat. We just rigged it a little bit. He has been pretty occupied by this different view. Everything is a little closer and he can reach the toys better.
I have even heard a few "coos" which don't sound like "coos", but I am sure that is the sound everyone is talking about when they say "coos".
The not laying flat and new formula (which we priced last night YIKES) seem to be helping Samuel. He isn't 100% better, but he is getting there. Which makes me happy and him!