Suppliers for the iPad mini are finding the specifications for tablet difficult, and consequentially production yields have been "frustrating," according to Topeka Capital Markets' Brian White. The analyst originally expected the tablet to ship in September, but blames the delay on yields, and suggests that the issue could limit the "full sales potential" of the product. Nevertheless, the supply chain is said to think it will ship an acceptable number units for a launch in the course of the next month.