Casual Dance MMO: Audition...

Audition is an MMO out there focused on dancing. Players have to perform dance moves to earn points. To perform dance moves, they use their keyboard to press the arrow keys at the right time. They can compete with other folks...you can also create dance routines with other folks too.

The game is free and their business model is the "virtual items" model.

You can see videos of the game here...

Here is the wikipedia entry for the game...

Here is Raph Koster's good description of the Audition Game...

They started out in Asia and recently (about a month ago)..released in the USA.

There are other Dance MMOs popping up in Korea and other places. Acclaim recently released its entry into the market here...
http://dance.acclaim.com/index.htm

Take care,
Action