MIT  once again takes the lead in driving bottom of the pyramid innovations with its latest announcement of the $100,000 Lemelson-MIT Award for Sustainability. From the Lemelson-MIT website:
The $100,000 Lemelson-MIT Award for Sustainability honors inventors whose products or processes impact issues of global relevance, as well as issues that impact local communities in terms of meeting basic health needs, and building sustainable livelihoods for the world's poorest populations.
MIT students and researchers have already produced scads of inventions that aim to improve the lives of those living on less than $2 per day, or “the bottom of the pyramid.” There's the all-terrain wheelchairs for the poor , ventilators for disaster zones  and a $3 suction healing device .
Nominations are due by October 5th and should highlight inventors who “enhance human development, mitigate human environmental impact, and/or provide adaptations to environmental changes that are unalterable in the near term.”
Still, it's unfortunate that eligibility is limited to "U.S. citizens, permanent residents, or foreign nationals currently working legally in the United States." There is plenty of innovation at the bottom of the pyramid, and $100,000 goes a lot farther there.