"Word Wizard is an iPad app that elementary school students can use to learn the sounds of the letters of the alphabet, sound-out words, and spell new words. The app has two primary modes to it. In the “Movable Alphabet” mode students can drag and drop letters on a board to try to create words. In Movable Alphabet mode each time a student touches a letter the narrator makes the sound of that letter. If a student combines letters, the narrator will make the sound of that letter combination. That pattern continues until a word has been created."
Via John Evans