J-Pad is an AT joystick for iPad (all types), iPad mini, iPod (3rd and 4th generation) and iPhone (3GS, 4 and later).
J-Pad is a unique, highly intuitive joystick interface providing comprehensive switch access to all iPad® functions - including Apps, music & media, iBooks, still & video photography, on-screen keyboard entry and much more.
Connecting wirelessly to the iPad® using Bluetooth 2.1, J-Pad is simple to set-yp and easy to use with touch sensitive buttons to launch and close Apps. Provided are two sockets to connect up to two wired switches.
Source: Pretorian Technologies