While Apple's long-rumored "iWatch" may be one of the products to look for in 2014, several rumors have suggested that the device is unlikely to launch until the latter half of the year as the company works to address technical challenges. A new report from DigiTimes claims that one of those issues involves surface finish treatments for the body of the device, with both Apple and Qualcomm searching for ways to improve the look of chassis parts made using metal injection molding (MIM) methods.Several wearable devices such as Apple's iWatch and Qualcomm's Toq are reportedly seeing less than 50% yield rates due to difficulties applying surface treatments on their metal injection molded (MIM) chassis, according to sources from the upstream supply