A disgruntled pilot reports that he ad visited a well known FBO at a busy, major-market airport recently and found  binder openly displayed on the counter with tail numbers, itineraries and other information of incoming flights, including his. He said the customer service representative explained that the notebook was there for the convenience of limo drivers so they could monitor the ETAs of their incoming customers. This concerned the pilot because, not only was he on a quick turn (with no limo ordered) but he also had his aircraft’s tail number blocked from commercially available flight-tracking programs. When he complained to the general manager, the book was removed.