Hail a cab with your mobile

I dunno how anyone would have trouble getting a cab in London since there are millions of the buggers all over the place, but anyway.....

"When a punter calls Zingo from their mobile, location-based technology pinpoints where they are. 

At the same time, global positioning satellites identify Zingo taxis in the area that are free.

Then, punters are automatically connected to an available cab driver in their area before the prospective passenger tells the cabbie exactly where they are. Bingo.

The charge for the Zingo service is £1.60 a throw, which is added to punters' fare."

Link from the Register