Typing Class (Games) for iPhone is an excellent App for all age groups who are interested in improving their typing skills. There are four games in one app to improve typing speed and updated version 1.6 comes with added "Practice Words" sections to practice fast typing of most used words.
App Store Link : Typing Class (Games) for iPhone, iPod touch, and iPad on the iTunes App Store
App Store Link : Typing Class (Games) for iPhone, iPod touch, and iPad on the iTunes App Store