what is the most essential part of this month's World Cup?. the players? the fans? you could argue it is...the ball.Ahead of the most popular sporting event on the planet,official sponsor adidas,has launched its latest multi-coloured football called the Jabulani,which means "to celebrate" in Zulu,one of the 11 languages spoken in south Africa.The 'Geip'n'Groove' profile makes the jabulani ball easy to control in all conditions.The 11 colours on the ball represent the 11 players in each team,the 11 recognized languages of South Africa and the 11 major South Africa tribes.It also aims to promote the theme of diversity and harmony.