According to iLounge, Apple has begun to allow Made For iPod and Works With iPhone-certified developers to include automatic application download prompts. If the devices are connected to the Internet via Wifi or WWAN, the user can then download the necessary software to get the devices to work.
A similar feature works for Printers in Snow Leopard. Plug the printer in and the OS gos out to the internet to get the software for it to work. Now this has been brought to iPhone.
This functionality was introduced in iPhone OS 3.0 but this is the f
