As the above video shows, it looks like some earnest user got Linux running on their Zune. It's hard to tell from the video quality to confirm if this is real or not. The video is posted by MysVidal who was known to be working on Linux for the Zune.

We'll let you know how the story unfolds.

UPDATE: According to the Zune Boards admin, the video above is a fake, although they are currently working on Linux on the Zune.