We've all seen them in action (sort of), so now it is time to check them out on a new level and get at least a cursory look at the different off-the-shelf options out there for living walls. A few select companies are offering systems that are available to North American buyers and beyond. Here's a summary of what I have found to date... anyone else knows of other products (manufacturers, here's your chance), let me know.
:: images via ELT
Another modular system, the G-Sky is an approximately 12x12" polypropolene panel mounted on steel brackets. These come pre-planted with a proprietary soil mix, filter fabric mesh, and 13 plants per panel. These, like the ELT, can be planted in a random pattern, allowing the understructure to disappear, or to made patterns using the grid modules as bitmaps (see below).
:: images via G-Sky
Another option from G-Sky is the Green Wall Containers, an very beefy integrated system that includes wall-mounted trellis and planters.
:: image via G-Sky
A variation on the ELT, these panels are made of lightweight recycled aluminum, powdercoated, or stainless steel - and come in a variety of sizes (12"x12"x3") (24"x24"x3") (12"x24"x3") as well as custom sizes. It also comes with a very annoying website - thus the crappy pics... oh well, you get the gist.