This is a discussion on Component AV cable output hi-def videos? within the iPhone 4 Accessories forums, part of the iPhone 4 Forum category; From the iPhone spec. page:
"Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; ...
"Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)"
Unfortunately no HD. This is a bummer, since the phone records 720p video. I wish they had a display port to HDMI adapter already.
"Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)"
Unfortunately no HD. This is a bummer, since the phone records 720p video. I wish they had a display port to HDMI adapter already.
I'm really hoping for a refresh of the 30pin next year. Also a magnet charging cord like the MacBook please apple....?