The iPad HDMI adapter, officially called the Apple Digital AV Adapter, mirrors anything on your iPad 2 scren to an HDTV or computer monitor with HDMI input. Screen mirroring works at up to 1080p, but movies are limited to the 720p of the iTunes downloads. Slideshows and movies are supported at 720p from the original iPad, iPhone 4, or 4th generation iPod touch hardware. For any screen with support for digital audio input via HDMI, audio is also passed to the high definition display. A second dock connector built into the Apple Digital AV adapter allows you to charge or sync your iPad at the same time you are connecting it to an external display. This review shows you how all these features work and why this is a must-have addition to your iPad 2.