Open office floor plans are bullshit and just about bodies/sq ft, PERIOD. Collaboration and all that other non-sense is just smoke and mirrors. I've worked in open office, pods (4 people), and single serving cubes. Single serving cubes are best for people who actually have to work and need quiet and pods are good for teams that work often together on the same task. Open office is just a noise/distraction fest.
But the high-level executives, including Apple CEO Tim Cook, are exempt from this collaborative environment and have offices on the fourth floor of the new building.