I won't take credit for this, David Alexander at
Telematics Journal tells it. It's about money (no kidding!)
Bottom line: Cabbies have to pay for the system and arguing they'll lose money since credit card payments shave a bit off each fare. He notes that a slightly different business model (advertising will pay for the system in no time) would have changed the result significantly. Moreover, he notes, cabbies already have to submit trip reports on paper. The new system automates that.
As he concludes:
Privacy and the “Fear of GPS” is a red herring. It makes for a more dramatic story than “Cabbies Shortchanged by Big Business,” but GPS is not at fault here, and this is a non-story from the GPS perspective.