What are the most important factors to improve innovation in a country??
GE has come up with a fascinating metric. They surveyed executives around the world regarding their views on innovation, and mapped out the data in a way that allows the viewer to study the relationships between different data topics, over geography and time. You can also compare the data they got from 2011 and 2012.
Check it out here:
Thankfully, several innovative Sanitation projects are popping up around the world. Take the recent Sanitation Hackathon from Dec 2012, when 1100 developers and technologists convened to address Sanitation problems from the developing world. This featured a collaboration of public, private, and non profits from around the world.
From what I could tell, there was an onsite challenge, and an offsite one for app development. You can track and see the results here.