The future is now. The solution to solving foreign oil dependence and air pollution is not going to be corn based ethanol or fuel cells that mix oxygen and hydrogen to provide energy. The soultion is in advanced lithium battery technology. An American company, based in Watertown MA, is the leader in lithium battery technologies that provide power to automotive electric engines. This company, A123 Systems, already has a deal with GM to help produce the batteries for its much anticipated Volt. Now they have released an upgrade kit for a normal Toyota Prius at the price tag of $10k. Why isn't Toyota producing a Prius that allows it to be plugged into the wall already and has advanced batteries? Either A123 Systems is a technological leader far ahead of the world, including Japan, in battery technology or there is not enough profit in it for Toyota.