After lunch on Wednesday, 2:15pm-4pm, …

AMD CEO Héctor Ruiz explained his company’s 50×15 initiative, which was established to enable affordable, accessible Internet connectivity and computing capabilities for 50 percent of the world’s population by the year 2015 …

Herman Chinery-Hesse, founder of the software firm SOFTtribe …

Nik Nesbitt founded KenCall, a call center in Kenya …

Serial entrepreneur Ali Mufuruki …

For more extensive descriptions of each talk, see Ethan Zuckerman‘s real-time posts on Héctor Ruiz, Herman Chinery-Hesse, Nik Nesbitt and Ali Mufuruki.

Watch for these talks on TED.com beginning midsummer 2007.