I've been pondering how you'd break the uber lock on the market. I mean, I use Uber and not Lyft 'cause there are more Uber drivers, so on average, the car is gonna be there faster if I use Uber.
However, if I had an app on my phone to check the nearest uber and the nearest lyft and the nearest whatever else? that would remove the barrier to entry that Uber has set up. in that case (at least when lyft had a nearby car) I'd be happy to take lyft or the local cab company, if they had a similar app.
Of course, you'd end up with an arms race with uber, or whoever the dominant player was, with them trying to break your app.
Interestingly, I bet that the second and third tier ride-sharing companies would cooperate, so if there were enough of them in the area, the idea would work fine even when uber was winning the arms race.