Apple has released version 2 of their Apple Store app for the iPhone. In addition to additional international support, the updated app brings new features like tracking your purchases and personal pickup, allowing you to purchase via the app and pick up at your local store.

The one new feature that caught my eye was EasyPay, which allows you to pay for your in-store purchase with your iPhone, negating the need to seek out an Apple Store employee. The only catch: you’ll need an iPhone 4 or iPhone 4S.

Release Notes:

• Personal Pickup: Buy in the app and choose to pick up your order at any Apple Retail Store. Most in-stock orders are available for pickup within an hour. (U.S. only)
• EasyPay: Purchase select accessories in store quickly by scanning the barcode and completing your transaction right in the app. (U.S. only, requires iPhone 4 or iPhone 4S)
• Track your stuff: View the status of current and previous orders from the order status section in the More tab.
• Additional international support (Canada, China).
• Requires iOS 4.2 or higher

Update: Engadget has posted a hands-on video demo of EasyPay, Apple’s in-store self-checkout feature. I have embedded the video below for your convenience: