When I clean the screen and look carefully esp under light I can see a few small dust particles under the screen at least 10 or so. They are very small and are not noticable when the screen is on for the most part. I can see a small one when I have a white background but it is very small. I assume since the screen is so big and due to mass production in China this is common. SHould I have Apple swap it out or will I most likely find this in others? Almost every iPhone I have ever had or seen has had this too.