Answer:
Increase
Step-by-step explanation:
The wages of Apple workers with specific skills pertaining to the production of iPads relative to PC workers are expect to increase due to the under-listed points:
As iPads become popular ,the demand of iPads is likely to increase thereby encouraging Apple to increase production of iPads by requesting these specialized staff to work overtime,since overtime premium is more than day rate, one would expect the wages overall to increase for iPads workers.
Also, the popularity of iPads would encourage competitors to launch similar gadget,thereby attempting to poach Apple staff by offering higher wage rate which Apple is likely to respond to by offering a much higher wage rate in order to keep its existing iPads staff.