Sugar offers a brand new approach to computing. Ever since the first Apple Macintosh was launched in 1984, the user interfaces of personal computers have been designed based on the same visual metaphor: the desktop. Sugar tosses out all of that like so much tattered baggage. Instead, an icon representing the individual occupies the center of the screen; "zoom" out like a telephoto lens and you see the user in relation to friends, and finally to all of the people in the village who are also on the network.
With time I hope to get one (or a few) OLPC laptops at Phoronix.