I really love the idea behind this. I'd like to think I'd get use out of it, but I can't see it being used at home - nobody would respect my "alone time", or in a working environment - you'd probably get fired.
However, as an outdoor solution, I think it would really work. It's like carrying around a mini tent, which you can easily carry, erect and use, before packing up and going on your way. That would be perfect for where I live (close to the countryside).
One suggestion: you need some sort of dog repellant, to stop your pause pod being tempting to passing dogs (for you know what) being walked by their owners!