Add pictures of controllers from systems ranging from the classic Pong to a full timeline picture of all Atari controllers up to the Jaguar. Also, Intellivision, Colecovision, 3D0, etc.
Discuss the evolutionary trends that can be seen in game controller development.
Discuss how controller design has influenced game design.
Add info on Sega Master System controller
Add info about fishing rod and reel controllers (these exist for at least the PlayStation, PlayStation 2 and Dreamcast); moreover, an article and category listing these controllers could/should be created. Many of these controllers can be found on ebay, which could be used as a source for this improvement.