Wi-Fi is coming to the eastern long distance trains later this year. I've seen the Amtrak Connect network in a couple coaches and am told equipment is being installed in the Amfleet II coaches as they cycle through periodic maintenance right now. Even though the system is turned on and broadcasting the network, it doesn't work without the "brain" car. I assume those will be the lounge cars just like the corridor trains.
So, if you see the WiFi network onboard right now, don't get too excited, but at least progress is being made!
So, if you see the WiFi network onboard right now, don't get too excited, but at least progress is being made!