Pentagram partnered with Red Hat developers and OLPC (One Laptop Per Child) to create Sugar – the interface for XO laptops (laptop.org).
Sugar is an interface designed for children intended to facilitate learning through creativity, expression, sharing and reflection. It uses a zoom interface to interatc with various scales of community.
The XO is a low cost computer and Sugar is open-source educational software, the XOs come with a wireless router.
It graphically focuses on activities rather than applications.
It also wirelessly connects to other machines and shows other users and their photos/activities etc
Developer wiki for Sugar:
A review of the XO and Sugar by David Pogue NY Times