I met the NIkon rep yesterday. Had a good talk.
The Nikon D1 and D2 series bodies now accept a Nikon adapter which is 802.11b and allow specific logging into another computer. They're now real network devices. There's a choice of antennas for transmitting 50 or 500 ft.
Also, they use a fast CF card as a virtual memory overflow buffer so you can shoot almost continuous in JPG mode and a good while in RAW mode before any slow-downs.
For you wedding photographers -- just set up your laptop out in the car and you go shoot and transmit, not worrying about space. Or ... stick a PDA with an 4 gig card in your coat pocket and send it everything.
One could set up an engine to take wedding photos and post them immediately to the web. Make that a subscription item to sell so people who can't make it can see it as it happens!
Unfortunately Pentax is now a 3rd-tier player.
Collin