I ran across this article for creating fresh drinking water out of thin air. You can find the article over at newscientist.com scientists have made new discoveries to harvest pure drinking water from dew. It seems like a vast improvement on the idea of a solar still. Hopefully cities in America like Atlanta, Georgia do not have to rely on this new technology to produce drinking water.
All the time I spent backpacking I never had to rely on a solar still to produce drinking water, but it's a nice survival tip to know. For several years I have relied on the drink aid for my hydration needs. Ruth over at wheelie Catholic has a nice article regarding the drink aid, check out her great blog and article.