Reuters has added to the long list of confirmations and claims that Apple will introduce a gold variant of iPhone with its next device - the iPhone 5S. The report cites supply chain sources in Taiwan for the information. This follows a research note last week in which KGI Securities analyst Ming-Chi Kuo stated that Apple would offer an iPhone in a gold casing in addition to the more traditional black and white. TechCrunch's MG Siegler followed up with his own claims and AllThingsD and 9to5Mac soon followed.