In the course of rationalizing route structures and introducing operational economies, cancellation by some carriers of ultra-short routes like PHL-EWR would only be natural. The distance is so short that the costs entailed in dollars, energy, personnel and time could be deployed better elsewhere in the system. Sorry you will be losing out on an easy 500-mile segment, butPHL-NYC is a natural for high speed rail, not airlines. Maybe we in NAmerica will start to learn from the Europeans about making use of the appropriate forms of transportation. I for one applaud CO for eliminating such a wasteful route.