Hey Josh, what if I want to turn my head to the right to look at my pair? One of the things I need ergonomically is to even out the twists in my spine. Seems at a place like Pivotal you might want to encourage people to do the same.
Switching sides is good when you're sitting side-by-side. But I haven't noticed that there's enough neck twisting in the tete-a-tete configuration for that to be an issue.