Still have a bit of faith left for the OLPC project.Good, you're gonna need it: designer Yves Behar has unveiled his latest concept design for the now-aiming-for-$75 vision, and it's all screen.Keeping with the newfound trend toward tablets, the XO-3 is an 8.5 x 11 touchscreen, coupled with a little folding ring in the corner for grip and a camera in the back.