Vision evolves, but $100 laptop is still the goal

In 2005, Massachusetts Institute of Technology professor Nicholas Negroponte’s idea of distributing $100 laptops to poor children captured the world’s imagination. Today, Negroponte’s One Laptop Per Child foundation of Cambridge has begun distributing hundreds of thousands of its XO laptops around the world. Globe reporter Hiawatha Bray spoke with Negroponte for a progress report.