I've just downloaded all the new goodies, so no reaction yet. I notice that iTunes4 now supports WAV files.

I do not know if I like the new button design. They are now backlit, but I never had much of a problem with the old style because each button was not only large, but had a discrete location.

On the go playlist selection looks great, because I spend much of my time away from my iTunes collection (music on an external drive).

Now of course, I suppose I'll have to reimport all my CDs in AAC format, does anyone know just how more efficient than MP3 this codec is?