The answer, of course, is to use a wireless connection between a digital camera and a cell phone or other wireless communications device. One camera already available with Wi-Fi as an option is the Nikon D2H (http://www.nikonusa.com/template.php?cat=1&grp=2&productNr=25208). OK, this is a big camera, but it's also very capable. And it's a bit pricy, but prices of wireless digital cameras will decline as high-tech products always do. We'll also likely see ultrawideband radios (I'll cover this topic later this year) used in cameras as well.
Regardless of the wireless technology, one of my favorite future applications for wireless-enabled cameras is to select the photos that I'd like prints of using software in the camera. Then all I have to do is walk into a photo store where I have an account, wait for the beep to tell me the photos have be transferred, and then return a short time later to pick them up. Now that's convenience!
By the way, my current digital camera is a Canon S400 Digital Elph (http://www.powershot.com/powershot2/s400/), which I really like because it's small and light, and has great resolution, image quality, and battery life. It lacks wireless connectivity, but someday soon cameras in this form factor will provide that, and at a low price. Then my phone will be both a phone and a relay point for other devices, and my camera can be a camera - and a great one at that.
I would be remiss if I didn't point out that camera phones, like cell phones themselves, have begun to shift the social fabric as well. Many health clubs, for example, now ban all cell phones because some miscreants have been using camera phones in locker rooms. Some businesses also restrict cell phone use out of fear of espionage and privacy violations. It seems that every time there's a great leap forward, some bozo out there will find away to abuse it. Oh, well, we can't solve that problem today. But we can say with great assurance that photography and wireless have a long and happy life together - just not integrated together in a cell phone.