Don't Click It
dontclick.it is an interesting site put together to demonstrate a website whose interface requires no clicking. I'm not sure I exactly get why (it seems to be more of an experiment of curiosity than an attempt to solve a serious problem), but it is a very elegant site with a fascinating interface and some interesting content.
There are a few games on the site to help you get used to a clickless interface. I'm wondering how computer-based game design would change without the click.