I'd like to add that there also has to be strict QA in place. Back in times when N900 was created, it was also designed in Finland but made in Korean factory (if I remember it right). Behind the scenes the need for extra QA was mentioned as the manufacturers at times tried to cut costs by replacing components without notice and all that sort of things. So, it really is not something you just order and expect to be delivered, you will have to have some serious QA in place. Otherwise you will be screwed badly, especially if you are "nobody" in the business with only small manufacturing batches.