All 32 teams will battle it out in an online tournament with a difference - it will be the fans that decide who will lift the virtual trophy. Fans can participate in this competition either online or via their mobile handset.

An online stadium features on Sony Ericsson's dedicated 2010 FIFA World Cup Extra Man website and showcases every stage of the tournament taking place on Twitter. Australian fans can follow all the action, from viewing and posting individual Tweets about the Socceroos, through to seeing what the loudest Tweeter in each group has to say about all the games on and off the virtual pitch. Fans simply need to go to the Extra Man website, click on the link to Twitter and get Tweeting to help take their team all the way to the final.

Tweets about individual teams are represented by the colours of the national flag in the online stadium - the bigger the national flag becomes, the more popular the team and the closer they are to being crowned the winner of the Sony Ericsson Twitter Cup. A specially designed wall chart view lets fans see the progress of their team and who's playing who next, so it is easy to compare the results with the actual 2010 FIFA World Cup. With no referee decisions, no offside and no suspicious handballs - the outcome of the Sony Ericsson Twitter Cup is decided by the fans.