Amazon has updated its Amazon Instant Video app, adding support for the iPhone and iPod touch. Previously available only for iPad users, the Amazon Instant Video app is now a single, universal app providing access to more than 140,000 videos from the Amazon Instant Video store, and more than 30,000 Prime Instant Video titles are free for Amazon Prime members. The app features “Your Watchlist,” a viewable queue for future viewing, and “Your Video Library,” from which users can download videos for offline viewing. Whispersync lets viewers continue watching videos where they stopped, on any supported devices. A Wi-Fi connection is required for streaming videos, as 3G or 4G streaming is currently not supported.