Apple is exploring a variety of different charging methods for its upcoming "iWatch" smart watch project, according to a report from The New York Times. At the top of the list for Apple appears to be induction charging, allowing users to recharge their watches wirelessly.For its wristwatch, Apple has been testing a method to charge the battery wirelessly with magnetic induction, according to a person briefed on the product. A similar technology is already used in some Nokia smartphones — when a phone is placed on a charging plate, an electrical current creates a magnetic field, which creates voltage that powers the phone.Apple's sixth-generation iPod nano with one of several include