Ford taking baby steps by getting rid of the lead-acid battery weight (up to 12 lbs) & their larger physical size. Their hybrids will have standard stop/start driving tech and will harvest regenerative braking energy. They are integrating the tech to a bigger product lineup and will have well-established battery partnerships to make it happen.
http://www.samsungsdi.com/xev/electr...le-battery.jsp
Ford and Samsung Next-Generation Battery Photo Gallery - Autoblog