Hardware

You should really read the article, the Chinese workers brought in to supervise the transition say as much:

Li said Chinese engineers sometimes talked about how they were working to make their own jobs obsolete: One day, Indians might get so good at making iPhones that Apple and other global brands could do without Chinese workers. Three managers said some Chinese employees aren’t willing teachers because they see their Indian colleagues as competition. But Li said that progress was inevitable. “If we didn’t come here, someone else would,” he said. “This is the tide of history. No one will be able to stop it.”