iPad Version http://itunes.apple.com/us/app/fifa-soccer-12-by-ea-sports/id464155086?mt=8 iPhone/iPod touch: http://itunes.apple.com/us/app/fifa-soccer-12-by-ea-sports/id464153727?mt=8 I guess, it's only available in US (checked NZ, GB and AU - none of them worked)
Just remember, it's over a Gigabyte COMPRESSED. On the other hand, it's probably the most complete sports game on iOS. Complete meaning the features and modes you would expect to find in a big name console/PC sports game franchise. I barely played it, but it has something like 600 teams, licensed players and jerseys, team management elements, seasons that, depending on your team and your play, take you through the appropriate league championships/regional tournaments/World Cup; etc.