320/480 Grid System for iPhone Version 1.0 Based on Nathan Smith's 960 Grid System, and details and demo are on the website. Description Thanks for downloading "320/480 Grid System for iPhone." I created this for my own iPhone-only web pages, and hope it helps to streamline your web development workflow on iPhoneOS platform. Unlike the 960 Grid System, "320/480 Grid System for iPhone" seperated cs