Goes to show what the FAs know. I was told by a BOS based crew with 20 something years seniority that there was "no way" a PED cart could fit in a 737 transcon with all that they have besides. The route was BOS-LAX. Looks like this route is on that list to get the IFE/PED.
Note to add: Those that are comparing "F" on these routes with "F" on a three class aircraft, the catering will be what you would get in "J" on a 3 class aircraft, not the same "F" service.