I have seen some taxi companies trying to add convenience--for example, I tried using TaxiMagic when I was in Denver for a conference. When it worked, it was

I have seen some taxi companies trying to add convenience--for example, I tried using TaxiMagic when I was in Denver for a conference. When it worked, it was great! I could see the car on the map as it arrived...But, the next time, I tried it during a mild snowstorm and the cab never arrived. So, I gave up on using them--but I imagine that with time, traditional cab companies will have more reliable apps. So, where will that leave Uber? I imagine that there must be a floor to what can be charged such that a driver is willing to work for the service and such that Uber can earn a profit. So, let's imagine that the market segments and that Uber wins say 80% of the market and the rest is left between competitors (I say imagine this, because as someone mentioned, there is a STRONG inertia effect. If I already have a taxi app with my information in it, then unless the price/service advantage is large, then I'm unlikely to change.). I imagine that one area that Uber will still maintain an advantage is that they will have a pretty good map in large cities of the traffic patterns (based on tracking of cabs). I imagine that that routing information could be valuable to delivery services in general. While large players like Google, Verizon, UPS, and such already have such data, there must be smaller players for whom it would be useful. Cities themselves might find it useful for traffic planning. Also, on a scarier note, Uber knows the route that its customers take. If it can link that data to demographics, then that might have some value for advertising along given routes, commercial real estate, etc.