I can appreciate the usability of the device but i disagree with the statement "I understand she's only six, but the iPod is more than a music device nowadays." It implies that she ready for this technology. I believe a 6 year old has to progress in maturity before he or she gets to that level of usage.
IMHO 6 years old is a time for play, close interaction with parents, and lots of love from parents and extended family. My grandson is 6 and what he needs is close supervision and continued moral education which must be taught by family and cannot be found under the headphones of an iPod. He does not need the distraction from the interaction with people and the life lessons he receives from extended family and friends who teach him how to get along with others. Getting along with others for us means not being rude by having headphones on in the presance of other people. That being the case right now he would have very little time to use an iPod even if he had one.

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….