This voice recognition app will take your students' spoken word and translate it into text. Dragon Dictation is very easy to use and does a great job of correctly recognizing speech.
Talking Tom Cat
Students tap the camera icon to record. Tom will repeat everything they say in a funny voice. They can pet him, and feed him. Tom is free but there is a $.99 charge for extra animations. Talking Tom 2 also records video with an iPad2
Very much like Talking Tom Cat but with a robot voice and actions. Kids love to hear Roby repeat what they say. I can see educational applications as students make Roby tell what they have learned.
Create your own radio station that will play the music you like. There is a lot of children's music.
Listen to Disney songs all day long! The free version supports requests and the pay version also provides lyrics.