I, for one, am. But, I’m not so sure a steering-wheel liberated US is an untapped goldmine of productivity. While traffic can be annoying, the car is really one of the last places people (at least some of us) are constantly tapped into things like email, the web, etc. It does give you a buffer between work and home. Just making it a mobile office is, in my mind, not necessarily a good thing, even if some us that time to be productive.