Already report was made that there was indeed an Increase of United callsign at KEWR but without "South" or "Houston" although also lots of "continental" was still heard elsewhere in USAas of today, the airline callsign "Continental" will not be used. They will be "United South or United Houston!"
Bottomline is in my opinion, in very near future we won't here "continental" anymore
Think it also effects Flightnumber designation all changing to UAL?
Grtz
Joost