My personal experience, having worked on a few skunkworks projects over there with a couple of different teams was that there were two people to an office that was probably originally designed for one. It was a bit cozy in there for my liking but it wasn't cramped, it was quiet, and a couple of people could stand in various parts of common areas and have an actual 'stand up' collaboration. It actually seemed very collegiate. I recognize the fact that since it was an R&D group they probably had better accommodations for this type of stuff, and that they were in an 'old' building that had these personal offices probably helped too.