That curve allows the tablet or iPhone to sit right over the top rounded section of the keyboard for comfortable use. The idea is that you can push the iPhone or iPad up to the keyboard and type away using the keyboard at a comfortable distance from the screen. The little stand is being made for injection-molded plastic.
The stand is designed to work with most cases on the iPad or iPhone including the iPad Smart cover. The designer of the stand is Daniel Haarburder and he is on Kickstarter looking to collect the money to start making the WINGStand. The project will fund in a little less than three days after raising over $46,000. The goal was only $9,500 so many people think that the stand is a great idea.