Good news for customers, investors, and Apple: iPhone 5 shipping estimates have just dropped to one week in Asia Pacific markets. That's the shortest shipping estimate since the iPhone 5 went on sale back in September.

The shorter shipping time means production of the iPhone 5 is ramping up significantly to meet demand -- something all-important if the company wants to have enough iPhones to sell during the holiday shopping season.

Though at the time of this writing the iPhone 5 was still showing two-week shipping times in other markets, that should change within a matter of hours to reflect the new shipping time.