This image was lost some time after publication, but you can still view it here.

Think of this as Teflon for your walls. A new paint, called Lotusan, has been developed by Sto that is self-cleaning. Intended for mineral, cement, and concrete surfaces, the paint mimics the water-beading effects on lotuses, causing rain to slide down the walls, thus reducing chances for micro-organism growth (The picture shown is the before/after effects of the paint). Sto is planning on commercializing the product as a spray-on for textiles, or some kind of special sheeting. Very cool idea... soon we'll never need to clean EVER. Ah how sweet that day would be.

Sto Lotusan — Biomimicry Paint [Treehugger]