Games people play

I am very much enjoying WordFreak Free from the Apple App Store where the player needs to deduce a five-letter word (all letters different). You get the starting letter and then try to work out which letter goes where by guessing five letter words: red means the letter is in the right place, yellow means the letter is in the word but currently in the wrong place. Hours of fun - as evidenced by the high scores on the game's website.