Apple has updated its Apple Store app to version 3.0 with a number of new features, ahead of the company’s upcoming event. The app has been redesigned for iPhone and iPod touch and now allows users to start shopping on one device and finish on another — you can start on a Mac, for instance, and complete the order on your iOS device. A new Stores section shows users the closest Apple Stores, along with workshops and events at those shops. Additionally,…