While reading the Guardian's digital content blog this morning, I stumbled across the image above in an article about the use of mobile phones in journalism in Africa. To me, this image is both poignant and alarming----in a continent in which there is only 25% electricity penetration, there is already 37% mobile penetration. On a very obvious level, this suggests that powering up mobile phones on the continent can be a challenge and is a real space for innovation in battery supply, etc. However, on a more profound level, it's an indication that mobile systems will continue to leapfrog other first generation infrastructures.