They should make something...
I would like to have a remote (wireless would be great, but wired would be ok) and better choices for headphone/mic combos. I have seen a couple that are not apples. Apples is ok, but I get ear fatigue from them after about a half hour of use. I had been using the apple in-aer headphones on my iPod, and they worked well for me, but they are starting to fall apart and lack the mic.
Having the fm tuner may be good, but I don't listen to much radio when I have my ipod, even when its available, and so am not sure I care about that. I think it should be an option however, for those who do listen to radio.