Fact is, what goes up must come down eventually, apple has been riding on the back of seriously good innovations for a while and they possibly were overbought.
The market gets jittery when it sees a stock to be over bought, no one wants to be last in, like if you bought a house at the top of the boom, so a pull back share value for now is frugal.
Apple's cash may flow freely, but unless they innovate further, they will lose market naturally. Personally, I think the market expects another innovation akin to iPod, iPhone, iPad.... To me I can't see their next step But I do hope they have one!