The story behind this Mac mini prototype

I recently received a supplement to 'Iconic' (a book containing a photo of nearly every Apple product), and it happened to flip open to the below photo of a Mac mini with a built in iPod dock. I've always been curious to know its backstory. Thankfully Jonathan Hoover found some answers. Prototype Mac mini with iPod dock

 

Update: Here's a look at the connection inside the Mac mini G4 that was never used. [via 512 Pixels]