|Actually, very few cities have been "designed" like LA. It's practically an enigma among urban planners, due to its lack of a concentrated urban center and vast land spread (it's the largest city in the world, area-wise.
It's a misnomer to assume that Los Angeles does not have a city center. It does. It has a downtown that is the equivalent of any other city's downtown (get called for jury duty in L.A. and THEN tell me it doesn't have a center!)
The southern California area that most people generically refer to as Los Angeles is actually a collection of small cities, like Santa Monica, Compton, Long Beach, Inglewood, Pasadena, Malibu, Beverly Hills, etc., of which Los Angeles is the largest. Orange County is also generically lumped in to the geography of Los Angeles, and it is its own county, politically independent of Los Angeles. Most major cities in other areas simply don't have as many small cities in their general vicinity to connect via freeways, so from a map they don’t look like L.A. But in terms of suburban sprawl (read: San Fernando Valley) L.A. is most certainly the model that most cities are following, if not by overt city planning choice, then by individual choice of citizens. Most parents are looking for a non city-like environment to raise their kids and singles are looking to escape expensive inner-city rent. So, they put up with a long commute for relative peace and quiet and inexpensive living.
Thus, I don’t think that a battery powered scooter, no matter how high-tech, is going to be capable of transforming the way American cities look, at least not for several decades. The market Kamen is focusing on is emerging markets in China and other places where cities are not well developed, and the scooter can be integrated in to the city plans before they get big. With lessons learned in these markets, American city planners can start expanding bike lanes for two way scooter traffic and develop various ways to control traffic for both cars and scooters in an integrated fashion to make it easier to use them on the roads.
That is, if anyone actually wants to ride the thing on a regular basis. These scooters will have to be priced at <$1000 for them to be a viable alternative to cars IMO.