Hello Jacques,
I sent you an email in response to your query in the membership box.
First, the iPhone doesn't connect directly to the NXT, it connects to
a computer, which has either my, or Anders software running and
connected to the NXT. Second, yes, there is a Setup Walkthrough, and
FAQ on the front page of this group.
I hope that my explanation here, or to your email gets you going on
this.
Sincerely,
Daniel Siemer