Calling all gardeners! (And wanna be's with space issues)

I just ran across something that I think is really, REALLY ingenious! A real space saver for those who are space-challenged for gardening - maybe no yard space available or no sun in the area where they could garden in. Problem solved!!! Check out this space saving garden idea! I would think that besides on a house you could install them on the side/sides of a shed or garage or other out building... and I can see where this idea would also be usable on the outside edge of a deck... Sort of a border along the railing. Anywhere they could get the appropriate sun. The deck rail is where I am thinking about using it. (Ironically, in following the links on the site I found that using it on a deck rail was the original incarnation!)

Besides being used for small veggies I can also see it maybe being used for seedlings... something to start bigger plants in.

I wonder if the neighbors would think I was crazy???