When savvy travelers want to hail a taxi or limo in many metropolitan areas, they grab an app like TaxiMagic (free) or Uber (free), tap a few buttons to "e-hail" a nearby driver, and they're on their way. New York City, however, has several decades-old idiosyncratic rules about which specific types of cars are able to respond to street hails (yellow taxis) and which are summoned by pre-arrangement or reservation (limos, livery and car service).
The notion of apps helping with e-hailing doesn't sit well with everyone. Car service and livery operators are not happy with the idea of apps being used to summon yellow ca
