Photos: Latest look at the $100 laptop

Nicholas Negroponte (right) shows off the latest prototypes of the fabled $100 PC, which is no longer a $100 PC, at the Wall Street Journal's D: All Things Digital conference. With him is the WSJ's Walt Mossberg.

Negroponte's laptop onstage at the D: All Things Digital conference in Carlsbad, Calif.

Vivid, ripe-for-the-picking orange. That's the latest color to enlist in Negroponte's campaign to bring low-cost computing to schoolchildren and their families in developing nations. The secondary color joins lime green, powder blue and rain-slicker yellow (unveiled in April; click here for more images) in the palette of options for prototypes being touted by Negroponte's One Laptop per Child organization.