Best of luck to the ones "affected" as everyone that I know who works at Apple are already overworked, stressed and being asked to work while on vacation.
You know that part of the reason that Google's interviews are so difficult is that they can hire younger people that have bright minds, no families, and that will work crazy hours?
The side benefit is that they have geniuses working there.
Ditto for certain groups at Google (cough android cough).
Either have a dedicated research group, or give people a pass at being 20% less productive at their regular job.
Here's a novel idea.. increase your workforce by 20%? I know, that's just crazy talk. :)