LIRNEasia has been, for some time, documenting how users at the Bottom of the Pyramid are innovating with ICTs. This story has the views of Eric von Hippel, the guru of the “users and innovators” school on how Twitter has mobilized users as innovators. In the next several weeks, Twitter users will discover two new features, Lists and Retweets, that had the same user-generated beginnings. “Twitter’s smart enough, or lucky enough, to say, ‘Gee, let’s not try to compete with our users in designing this stuff, let’s outsource design to them,’ ” said Eric von Hippel, head of the innovation and entrepreneurship group at the Sloan School of Management at M.I.