I have 2 versions of the iPhone (2G and 3G) and have had the same problem trying to run video on the D3 with both of them. The video displays fine till the airplane mode warning pops up and then video swithes from D3 screen to the iPhone screen but the sound still works through the D3. Any sugestions?

No idea, but if you want to send me your 2G version, I'll figure it out for you