Very interesting development as Apple displaces one iPhone prototype which seems to be the next one in line. Judging from the design aesthetics I can say it makes perfect sense. This iPhone looks more in the family look with iPad and Macbook than the current iPhone does. Looks like it has a front facing camera, a side sim slot. Gizmodo, the website that unearthed this unit, has a good write up on it. Check it out.
http://gizmodo.com/5520164/this-is-apples-next-iphone?skyline=true&s=i