As I was idly browsing the internet tonight I came across wallpaper that you can interact with. Now I'm a sucker for interactive art and design so I was quite taken with the idea. This wallpaper was designed by Kirk Mueller and features STD's which fade in when the user touches the wallpaper. There are video's available of the images fading in and out here. The conductive inks used can be screenprinted and used to draw with so it would be interesting to see them applied to some illustrations.