That's what we said 5 years ago in the audio field.
At 24 bits +, it's gotten hard to tell the difference. In the hands of engineers with great ears, it's anyone's guess.
Digicams, in 10 yrs, will be indistiguishable from film.
Except that digital images will be correctly exposed, even by rank amateurs.
My daughter just got married, and we covered the wedding with film and digital. I'm still waiting for the film, but in the meantime we have about two thousand digital images, three hundred of which are running on a screen saver slide show.
The first thing you need to take attractive digital images is to get a camera like some of the Nikons, that go to ISO 800. Then permanently disable the flash. A fuzzy available light picture is a thousand times more attractive than a straight-on flash picture.
I took a number of posed shots with my Nikon TTL bounce flash and a 2 megapixel Nikon camera. Of course the don't have the resolution of Kodachrome, but I was lucky to have a low white ceiling and a solid black background. I will hold them up to any comparable shots by professionals in their visual interest. They look absolutely sharp on the computer screen, which is where they live.
Resolution is not the end of photography. The ability to work quickly, get things in focus and correctly exposed, are paramount in family photography. That and taking lots of images to get a number of good ones. With digital you can cover an event with a thousand images and get fifty really good ones.