A Japanese site is displaying photos of what it claims is a realistic mockup of the second-generation iPad. Allegedly encountered during a trip to Shenzhen, China -- the home of many technology companies, including Apple manufacturing partner Foxconn -- the mockup is notably thinner than the current iPad, and also uses tapered edges, similar to those on the fourth-generation iPod touch. The back is otherwise completely flat, doing away with a previous bulge centered on the Apple logo.