Since my first post on the topic, some customers are still having problems with their orders. There are two different Dell Community Forum discussion threads happening here and here.
The main issue in those threads is that some customers are receiving estimated ship dates of late January. We expect the remaining orders to ship by the end of next week. I apologize for the inconvenience.
As I mentioned before, we no longer have brown Zunes and that we will substitute a different color for all remaining orders. Thanks again for your patience.