According to the company, the Formula 3 is the successor to its Liquid case, and is a three-piece "slide on" case that has flared corners and rubber tone finish. Its bottom piece is designed to easily slip off when docking your iPhone.
Meanwhile, Element is billing the Ion 3 as the most durable case in the line. It's a soft/hard case that's made out of silicone rubber for a non-slip grip but has a rigid Carbon Fiber back plate with a polished, smooth finish. The case easily slips off for docking purposes.
Element's Vapor case for the iPhone starts at $79.99 and has become sort of a vanity iPhone case, attracting some celebrity buyers. While the Formula and Ion cases for the 3G are more affordable at $59.99, they're still expensive. Currently, the first-edition Formula and Ion cases are only available in black. Element will release iPhone 4 versions in October.