Apple Australia has announced you can add money directly to your iTunes or App Store account with a new service called iTunes Pass.
iTunes Pass
With iTunes Pass you can view your iTunes/App Store account balance in your iPhones Passbook app, plus add money directly do your account.
- Go to the iTunes Store on your iOS Device (iPhone/iPad).
- Scroll down to the Redeem button.
- Go into any Apple Retail Store and let them know you want to add credit to your account.
Staff at the Apple Retail Store will scan your iTunes Pass and accept your payment, which will be updated and can be used immediately.