British heptathlete Jessica Ennis poses for photographers in front of a depiction of the British Union Flag during the launch of the team kit that will be worn by British athletes at the London 2012 Olympic and Paralympic Games at the Tower of London in London, Thursday, March 22, 2012. The kit unveiled Thursday, was designed by British fashion designer Stella McCartney. (AP Photo/Matt Dunham)
British heptathlete Jessica Ennis poses for photographers in front of a depiction of the British Union Flag during the launch of the team kit that will be worn by British athletes at the London 2012 Olympic and Paralympic Games at the Tower of London in London, Thursday, March 22, 2012. The kit unveiled Thursday, was designed by British fashion designer Stella McCartney. (AP Photo/Matt Dunham)
British track and field star and former World heptathlon champion Jessica Ennis will be hoping the home advantage can help her win gold at the London 2012 Olympics.