The new Nokia N900 is only a week old, but it's already being put to some interesting uses -- like this nifty little video wall commissioned by Nokia at the onedotzero adventures in motion festival in London. A custom Maemo 5 app sends messages to the display, and then the phone's accelerometer can be used to control the animation. Sure, it's not the most super-original phone+art installation we've ever seen, but i