I'll add two more thoughts, although they are not relevant to the original question. First, I am amazed at how many pilots I fly with who switch ATC frequencies and immediately transmit. It helps...immensely...to wait a few seconds and see who you may be stepping on. Second, when reading back a frequency, I always insert a brief pause where the decimal is... "128....25" or such. That seems to help catch errors by allowing the guy or gal on the other end to process what I just said.
Uplinker, you are confusing large amounts of money with complicated work. I'm sure it would be pretty simple, but I do contract work for the FAA, and I know that the actual process would require enormous expenditures of manpower because they can't do it any other way...as one friend used to quip during ARAC meetings, working with the FAA is akin to Paul Revere riding through Boston shouting, "a glacier is coming, a glacier is coming"...
