If it wasn't quite clear how the XO screen worked, this might make it a
bit clearer:
http://www.youtube.com/watch?v=wI28-IS9AII
The video was also taken on an XO.
--
Ian Bicking : ianb at colorstudy.com : http://blog.ianbicking.org
: Write code, do good : http://topp.openplans.org/careers