Foxconn, one of Apple’s partners, is getting ready for something major. The company has reportedly is increasing its staff in Zhengzhou, China ahead of plans to start iPhone 5S production. The new hires will be responsible for building existing iPhone models as well as the iPhone 5S. Its pretty common for a large company to add staff when in mass production mode. iPhone 5S production is suppose to be soon and will have a summer launch date.