I'm still hoping someone will make it happen. Or rather, perhaps an entire army of services will make it happen as we've seen, a de facto monopoly, yields terrible results.
[1] http://www.newyorker.com/magazine/2014/11/10/better-time
There are multiple apps like mytaxi which add a layer of usability, estimated pick up time and cost, pay from app, interactive maps, and driver rating.
I was recently in Pittsburgh and saw a clunky touch-screen app stuck to the back of the passenger seat that sounded just like Uber, so it's clear that someone out there is working on building Uber-like dependability for your taxi. But I also remember talking to the cab-driver on that trip, and having him tell me that their 'dispatch' is still one person sitting in an office somewhere manually dialing and dispatching cabs to received calls. The status quo in the industry is just so ancient in so many ways. Here's to hoping they can start moving and respond though.
Regulation could be useful here, if properly designed, by helping to alleviate the fears of those in the existing industry who are most likely to be directly affected by these useful innovations. Unfortunately, the allergic political response of some sectors of society to anything interventionist makes coming to reasonable arrangements quite difficult, so we just end up with something that isn't really that great for anyone.