From RepRap blog:
The Foresight Institute has announced its Kartik M. Gada Humanitarian Innovation Prize to design and build a better RepRap. There is an interim prize of $20,000, and a grand prize of $80,000. They consulted with the core RepRap team before the announcement and we were initially concerned that the prizes might drive developers to secrecy in order to give themselves a competitive edge. As you will see they have addressed those concerns by making it a condition of winning the prize that solutions should be pre-published and made available under a free licence. For ourselves and on your behalf, we would like to thank the Institute for the enthusiasm that these prizes demonstrate for the RepRap project and for their magnificent generosity.
Congrats to Foresight Institute and Kartik Gada for establishing this interesting and substantial prize. There is another prize, too. Besides the Personal Manufacturing Prize, there is a Water Liberation Prize, described here:
The winner of the Water Liberation Prize of up to $50,000 will be the first person to invent a device that is either solar powered, manually cranked, or otherwise not dependent on the existence of an electrical grid, can produce at least 4 liters of potable (drinkable) water per day, either condensed from the air (as measured in approximate 50% ambient humidity) or filtered through a nanomembrane, and can be mass-produced (as demonstrated by a pilot run of no less than 100 units) for a cost of less than $5 per unit. The filter should be washable and re-usable, without requiring a periodic supply of new filters, as the device may be used in areas without access to a suitable distribution channel.