Apple has introduced a new Apple Store app which lets US customers purchase Apple products, including the new iPhone 4, from their iPhone or iPod touch. The Apple Store app is available as a free download on the App Store beginning today.

The new Apple Store app lets US customers with an iPhone or iPod touch find an Apple retail store near them and make reservations for retail services including free tech support and advice at the Genius Bar, hands-on workshops, Personal Shopping appointments and personal training sessions through Appleā€™s One to One program. Customers can also shop the full selection of more than 1,000 products and accessories available from the Apple Online Store, get the latest Apple product news, read customer reviews and get answers to their product questions.