We have a new launch date rumor for the Apple iPhone. This time Engadget reports that they got this information from a source that works at a TV station.

Update:
iPhone Launch Date Official - see iPhone TV Ads

Apparently the source saw the submitted Apple iPhone TV commercials and one of them shows the launch date. June 29th is a Friday and not the usual week day (Tuesday) for an Apple product launch.
But then it is not Apple who launches the iPhone, it is AT&T. Last week TV station CNBC reported that the iPhone would launch on June 20th, which is a Wednesday. We just do not know at this point, when the most anticipated mobile phone of 2007 will be available. We also do not know if there will be enough stock of the iPhone to meet the demand.
On June 11th Steve Jobs is holding the keynote at the WWDC 07, lets hope he will tell us then when his new must have Apple product will be available.