It is not Boeing nor Airbus fault that GLS in standard, the FAA promised NextGen and outlined the future, which has most, if not all, VOR out of operation by 2015....WAAS is a waste of money to equip for given GBAS,(and lack of procedure guidance) and ILS does not give the capacity needed by 2015...
RNP is virtually unsupported by the FAA as far as viable procedures...while airlines such as Alaska Airlines and FedEx, use RNP exclusively for access and performance gains...