"TouchTaxi, a media company based in Melbourne, kits out the cabs with heavy duty PCs in the boot connected wirelessly to large touch-sensitive screens in the back of the headrests, global positioning system (GPS) receivers, Wi-Fi wireless internet access cards and an SMS and general packet radio service (GPRS) data connection to the mobile phone network.
These parts work together to provide passengers with an in-taxi information system which they are free to browse while they are driven around the city. There's no need to ask the driver to recommend a bar or club in the area - the taxi itself is more than qualified to provide the answer. And because systems like these don't come cheaply, the top quarter of each touch screen is reserved for banner advertisements."
--BBC News
