I was sniffing around the Internet today when I stumbled upon this awesome iPod video wall by Welikesmall. I want one of these in my house (and 20 iPod please).
It was made from 20 iPods over the course of about three weeks in our spare time. Tasks included building and designing the wooden box, programming an iPhone application that runs off the Game Kit framework, hacking a USB hardware fan together, developing a Python / Django web server application, and designing a quick UI. To keep the wall constantly powered we used a Cambrionix B2 USB powered hub.