Well, unless you are a Zune Team Member. Remember the orange and magenta Zunes with the Zune 1 launch? Well, these Citron (or yellow) Zunes are in that unique category.

zune-citron

Any Zune Team Member want to sell theirs? Call me! Tyler has my number.

Anyhow, ZuneGuy has the official word on these...

I've seen a few posts today about the Yellow (or Citron) Zunes. I've also seen a lot of speculation as to whether this is a "hidden" product. I'll shed a little light on this. They do exist. They are the ship-gifts given to the team for launching the product. Just like last year when we gave out Magenta and Orange devices, these are a special run just for us. There you have it, mystery solved.

P.S. I have to say, I really, really like mine. Good job manufacturing team!

Source : Zune Thoughts