One of the next "big things" for photography will be more advanced networking in the camera itself. There's now plenty of pixels (possibly too many), most of the new units have video, RAW and HDR are now evolving well. BUT, networking on a camera stinks. Ok, they are starting. I have a Canon 5D Mark II and I can buy a heavy $900 brick to add very very boring limited WIFI or you can carry a laptop and the brick and a few cables and  (nevermind it stinks). So I decided being a geek at heart that I was going to try to build my own more portable camera network. I want those 1,000 photos per trip waiting at home for me.
 
I need a new phone anyhow, so I will be at the Apple store to pick up a new 3Gs unit this Friday that I ordered. Ok, overkill for a phone (other than the cool thing), but it's the data part I was after. There is a lot of very cool iPhone photography software, and my goal is to use the iPhone as a remote tool for the Camera  (and me) but without cables of or a laptop.  Since the iPhone has 3GS, WIFI and GPS I think it's very doable, Below is just a small sample of some photography iPhone apps, and a couple of misc. that I will be experimenting with to make the networking cleaner.

http://www.creativepro.com/article/iphone-apps-photographers
P.S. Look at the Every Trail app in the link above, that alone sold me on the iPhone

http://www.ononesoftware.com/detail.php?prodLine_id=38
This one is almost there (at least for a Canon, I'll play with my Nikon if I get the first working), they just need to overcome the laptop requirement.

http://www.eye.fi/ 
Ah ha! Put's wifi on the camera, of course my camera uses CF cards, and there is on SD so far  (groan) but there is a CF adapter to fit the SD card in..