UberCab: Push a Button, Get a Ride

If you’ve ever tried to get a taxi in San Francisco on a Friday night, you know it’s a nightmare. But a new startup called UberCab is trying to solve this using the GPS and data connectivity of the iPhone. I just tried it, and it feels like living in the future.

The App Experience

The app is deceptively simple. You open it, see where the nearest black cars are on a map (thanks to Google Maps integration), and tap "Request Car." You don't have to talk to a dispatcher, you don't have to stand on a corner waving your arms, and—best of all—you don't have to fumble with cash or a credit card when the ride is over. Everything is handled through the app.

Technical Coordination

Under the hood, this is a massive coordination problem. UberCab has to manage a real-time marketplace of drivers and riders, calculate ETAs based on traffic, and handle secure payments.

They’re making heavy use of the iPhone's Core Location framework and pushing the boundaries of what "real-time" means for a mobile app.

// The UberCab Stack (Estimated):
- Node.js (for real-time communication)
- Python/PostgreSQL (for the backend)
- iOS/Objective-C (for the client)
- Google Maps API (for the 'slippy map')

Outlook

UberCab is currently a luxury service—it’s about 1.5x the price of a cab. But the model is revolutionary. It’s the first true "logistics as a service" company. I suspect that once they figure out the regulatory hurdles (the city is already unhappy about the "Cab" in their name), this "push a button, get X" model is going to spread to every industry. We’re witnessing the birth of the "Gig Economy."