I purchased an iPhone Saturday June 30, 2007 Click Here for iPhone Site. I have been trying to activate it since then and have not been able to use it yet. I went through the iTunes registration and recived a screen saying "Your activation requires additional time to complete." I have been calling AT&T every day to try and get it activated. It was not until today that a representative told me that my pre-existing plan with AT&T(Cingular) was not compatible with the iPhone. So they changed the plan and advised me that it should be active today (07/02/07). This call took place at about 9am CST and I have been trying to get it active ever since. Also I do not have any active cell phone because once I activated the iPhone it unregistered the SIM card in my other phone. I am hoping that it will become active today.
I woke up this morning (07/03/07) and went to my computer to check the activation of my iPhone. It finally activated so I now have an active iPhone. So far I am enjoying it.