I really like what Rachel Zedeck has set up in Nairobi Kenya. She is one of the founders of backpackfarm.com which is taking a very different approach to food security. They've studied the problem that most of the aid agencies are distributing food to sustain people, but it has low nutritional value. Rather than just talking about it, they are one of the few tackling the challenge in a practical, sustainable way. What Rachel says about the media towards the end of the interview is spot on from my experience.
The latest development in August 2011 from the Backpack Farm Agriculture Program has been the alliance with Mercy Corps to launch the KUZA DoctorSM. This is a mobile based (SMS) tool providing text-based, technical support to smallholder farmers in Kenya. Farmers voluntarily register to receive messages in either English or Swahili. There are more than 17 million smallholder farmers in Kenya and reaching them via mobile is definitely the way forward. Impressive.