As free version of World Cup 2010 live wallpaper, it supports touch, gravity and acceleration.
For paid version, it includes more fantastic features.
look through the feature list
set all sensors argument
choose country fields and ball skins
dynamically updating soccer&field picture
set dynamic updating frequency
set soccer quantity and soccer size
real-time score push notification
For more fancy features, including setting of G-sensor factor, dynamically changing fields&balls and real time match score notifications, please purchase the paid version with only $0.99 which cost me a whole month focusing on making this app. So I double promise the app is definitely worthy of playing for fun in particular in world cup. Imagine you are watching the match, side by side playing the football on your phone and showing off to your friends or families, it's pretty cool!
This app needs android 2.1 OS to run on.