Google announced the Open Automotive Alliance. It's a group of technology and automotive companies, including General Motors, Honda Motor, Audi, Hyundai, and chipmaker Nvidia, that want to customize Google's popular mobile operating system for vehicles. The technology companies get a chance to place their wares into hundreds of millions of cars. Car companies have traditionally rejected the latest and greatest gizmos, preferring stable, proven technology. It's a stance that makes sense given the safety and reliability concerns they face. The rise and rapid evolution of smartphones and tablets, however, has put a great deal of pressure on these automotive traditions.