How much can factory workers earn for each iPhone 4S?

iPhone 4S created a heated buzz worldwide in its first selling day.
For a HKD$5088 iPhone 4S (16GB),
Do you know how much is paid to the supplier factory workers?

 (Photo of IFC apple store in Central, Hong Kong. Credit: wZa HK)

"Fair Trade Label" vs "UTZ Certified"

Stumbled upon the coffee label called "UTZ Certified" in chain stores?
Wonder if it is another type of Fair Trade certification?
In fact, it is a more lenient labelling system.