Jockey was the program that was used to install additional drivers. From Ubuntu 12.10, it will be replaced by ubuntu-drivers-common and will be presented with a new inteface. The announcement comes from Marti Pitt’s post on the ubuntu-devel mailing list. This update is meant to provide a nicer and simpler GUI and a software that is more robust than Jockey.
Also, the mirror selection menu will look like this, and will allow you to download software and updates from fastest detected server.
Instead of jockey, there is a new tab in software settings window that will allow you to manage and install additional drivers.