While I was in South Africa last week I met some interesting people.  That included a long conversation with Mark Van der Merwe who is doing some great work using mobile phones as a mechanism to ensure compliance with drug regimes.  Its not an easy area, but the work it vital and we are looking for some ways to work together.  One of the clever things they are doing is to distribute packs of playing cards (in very large numbers) to people.  The playing cards use cartoons to get across simple and important messages relating to AIDS awareness.  I have shown one example here.  Its a good example of the way simple small scale interventions which tell a story can make a contribution to one of the great problems of the current world.