Taiwan Economic News says that Apple has tapped Simplo Technology Co. and Dynapack International Technology Corp. for the iPad batteries. The word is that the batteries will be thinner and lighter than previous models, but also about 20-30% more expensive. Couple that with the new retina displays expected for the iPad 3 and the costs for parts alone will pile up fairly quickly for Apple.
Of course, we also know that Apple is extremely strict about hitting price points for its products, so it seems unlikely that these costs would push the end price of the iPad. But, thinner, lighter, and a retina screen? Seems like a winner to us.