Users link to the iTunes Preview page by choosing the "Copy Link" option within the iTunes app. That takes them to the Apple-hosted site with description, price and screenshots of any titles in the App Store. It also includes information such as system requirements, customer reviews and links to a developer's official Web site.
AppleInsider notes that Apple is said to be working on a completely Web-based iTunes service -- a rumor that gained steam after the company acquired music-streaming service Lala in December for $85 million. --Mark Walsh