What the hell?! Give. Developers. Offices. With. Doors. It's conceptually simple, and will probably cost less than this novelty shit in the long run.
The worst physical office environment I've ever worked in was one where I had an individual office with a door. It was an interior office with no windows, effectively a large closet, and it was pretty depressing and alienating.
Maybe you could argue that you should give all developers offices with doors and exterior windows. But the dimensions of most buildings don't make that practical.