A demo of FIFA 12 is now available to play through YouTube with no download, powered by Gaikai. Only available in the US at the moment, the news was tweeted by Gaikai CEO David Perry earlier today.
Clicking the demo banner on the game's YouTube page will launch a new window in which the game runs. The demo uses standard mouse and keyboard controls as well as controllers.
This is the first time a full 3D game has been available on YouTube, and could have profound consequences for developers who will be able to get their games out to very wide audience quickly.