http://news.cnet.com/8301-13579_3-57415807-37/next-iphone-said-to-ditch-glass-for-liquidmetal-arrive-in-june/ “This is a technology that has yet to be matured and perfected both in manufacturing process and application development,” Peker said “Liquidmetal is super strong, scratch and corrosion resistant, resilient and can be precision cast into complex shapes,” Peker said. …while plastics are cheap to manufacture in complex shapes, they aren’t strong enough.Glass can …