Linux users have in the past been confined to using MSC based MP3 players, ones that act like basic drag and drop memory cards, so choices have been limited. In order to get MTP based devices to work Linux users had to used programs like Gnomad2, Rhythmbox, or Amarok to transfer media to these devices.
In the latest Ubuntu version 8.04 a simple command (sudo apt-get install mtpfs) will install full MTP support. MTPFS provides a full file browsing experience just like an MSC based device with the ability to browse playlists, write playlists, and write metadata to music tracks.
This is great news to MTP only devices like the Creative Zen family, but I also throw out a proposal for the Zune. The Zune uses a modified version of MTP called MTPZ. If this isn’t too modified from MTP, then could this be a slight hack to get full drag and drop Linux support to the Zune?