Vertical Garden -inside or out!

I am always looking for ways to maximize growing space in my small, central Phoenix yard. The more you grow, the more you look for new places, new ways to grow even more food. It it very addictive. On an episode of Growing your Greens on You Tube he features a new item from a garden show that looks really neat for just that. Its called the PhytoPod. (Im thinking I could even DIY this.) You can use it inside next to a window or outside on a small patio. It gives up to 20 feet of plantable garden space! I'd love to hear about how it works out for people using it. John on the video said he would keep us updated.