Tonight, Saatchi & Saatchi announced the winner of its Award for World-Changing Ideas at big gala event in New York City. Our sister blog, Unbeige, along with judges Edward de Bono, Peter Gabriel, Malcolm McLaren, and Philippe Starck were on hand to hear that the $100K prize went to... LifeStraw, a truly worthy cause.

Lifestraw is a portable, personal, water-purification tool that turns even the dirtiest water into safe drinking water. The gadget can provides safe drinking water for one person for a whole year. For the more than one billion people who lack access to safe drinking water in the developing world, LifeStraw a chance at a healthy and much longer life.