Truth in Hydration is a bottled water companyTruth in Hydration is the blog of Tap'dNY, a bottled water company that sells ... New York tap water in bottles! To market their product, the company's "street team" went about Central Park refilling people's empty bottled water with good ol' fashioned NYC tap!

Link - Thanks Jake Bronstein!

Update 9/12/08: Sorry, my mistake. The company is Tap'dNY, Truth in Hydration is its blog - Thanks Jake!