Original blog post is here.
TED posted some comments from Twitter. They are really kind.
William Kamkwamba spoke at TEDGlobal 2007, as a shy young man who'd built his family a windmill from scrap. His story captured the world's attention. Today he walked onstage with confidence to tell his story from that point to this.
@herbkim Google 'William Kamkwamba' – sat next to him at dinner last night having no idea he was gonna blow me & the TED audience away this morning
@CosmoCat William Kamkwamba telling how he decided to built his own wind-powered pump to get water and save himself and his family from starving
@beckyblanton Michael Kamkwamba had a dream, made it happen, self-taught in libraries - built his own windmill from scrap. Hope always finds a way.
@frogdesign And the crowd goes wild. Incredible story about hope and invention in Africa from William Kamkwamba.
@ruthannharnisch #TED Fellow William Kamkwamba tells his powerful story – you'll have to buy his book, "The Boy WHo Harnessed The Wind"http://bit.ly/OQPUG