Last week we wrote about the impending arrival of classy cab service, Uber. Today, it’s gone live. Those in Johannesburg will be able to see Uber cabs show up on the Uber app for iPhone and Android. The easy-to-use app gives an approximate arrival time for an Uber cab, too.

Once you’ve requested an Uber, it’ll show up in the given time frame; you can even track the cab as it nears your pick-up location. Hop in when it does, give the driver your destination, and off you go. At the end of the journey the cab fare is charged to the card you’ve used to sign up for the service.

Hopefully Uber takes off locally. The simplicity of hailing a cab with a smartphone app is far more appealing than some of the other phone-a-cab options. And besides, this way you get to fool strangers into thinking you’re Batman by shouting, “Pick me up” into your phone and having a car arrive a few minutes later.

Eleven years ago Christo started writing about technology for one of South Africa's (then) leading computer magazines. His first review? A Samsung LCD monitor. Hey, it was hot news, back then. Nowadays he gets more excited about photography, cars, game consoles, and faster internet connections. He's sort of an Apple fan, but will take any opportunity to remind you about his Windows-powered home theatre PC and desire to own a vanilla Android tablet.   Currently uses: Apple 13-inch Macbook Pro with Retina Display, Apple iPhone 5, Microsoft Laser Mouse 6000, Audiofly AF78 Earphones, Xbox 360, Nikon D50.