It seems inevitable that, someday soon, "intelligent recommendation systems" will be built into taxicab GPS displays, and into consumer smartphones. But whether passengers' and drivers' systems will work together or against one another is anybody's guess. Today, inefficiency is a natural part of the taxi system, shared equally by everyone. Tomorrow, it may be a hot potato, tossed from cabbies to drivers and back again.
The more we know, the more conflicts arise. It's not always non-zero-sum.