When google announced its plan for a self-driving car, a group of scientist already did it. The Autonomous Labs in germany developed an ipad application that lets you call a taxi in Berlin using your device. It gives you real time updates on the current location of your taxi. You can guide it where ever you want to be pickup & dropped off.
In my personal opinion this may not be applicable to Metro Manila because of the following reasons:
1. Frequent human errors & issues.
2. Corrupted traffic signs due to manual operation of traffic enforcers.
3. Confusing roads & signs.
4. PUJ & PUB drivers don’t have discipline.
However, if we can improve or avoid what I mention above, this maybe a good sign that we can implement this technology in the future. As far as I see, sky is the limit for the possibilities. We’ll see what will happen in the next 20 years.