DS4 liked Fridge Phonics by Leapfrog, same thing that St paulis kid liked. He also really liked the next fridge phonics game which is the "word whammer", that one says the letters as they put them in but they can also make short words.

And then the free phonics website www.starfall.com has great letter teaching songs/animations.

DS recently learned the names of the keys on the piano and the only way I could figure out if he really knew them was to be silly and say, "now this one is a X, right?" and he would correct me as he can't bear anyone within a mile of him to be wrong. If your DS is like that it's a easy way to see if they know something or not.

Polly