The wireless module piqued my curiosity, even though I don't need to transmit live pictures on the job.
There are some limitations to consider for the user.
The 802.11b standard can operate on 3 non-overlapping channels without causing interference between access points.
So if there are too many photojournalists on-site each trying to set up their own wireless network, there's going to be interference issues. If the spot is close to a public WiFi hotspot, there's another competitor in the frequency band.
The wireless base station would also have to be reasonably close to the camera to ensure the best signal quality. Away from open areas, obstacles can dampen the signal. So even without cables, there's still some restrictions.
Sharing a base station with a colleague? Split the 5-6 Mbps real-life 802.11b bandwidth, and you get maybe 300kilobytes per second. So 802.11g seems like a good idea given it's finalised already.
The wireless module will draw additional power as well, though the prepared photojournalist will be.... well prepared in the battery department.
Also, where previously the camera might be tethered to a notebook or the media card physically transferred to an assistant, an incorrectly configured wireless network poses security loopholes - whether the unauthorised is looking to sneak peek at your pics, or looking for a wireless network to get on the internet for free.
Still, I'd also regard the wireless module as a significant new feature, even though I don't stand to benefit from it since I don't work for a newspaper or a wire agency, trying to publish photos faster than the competitors or meet offstone deadlines, nor have a habit of net-surfing for real-time news and pics. ;p