My cameras...
I LOVE my Canon G1.
Some of the great features of this camera are the LARGE capacity battery that lasts seemingly forever, and the ability to use the IBM microdrive for storage. I have a 340 mb card, and for my purposes, that is a perfect size. I can take about 250 full-rez photos at a single photo shoot. This allows me to be shutter-happy, and then just weed out all of the bad shots. Want a great picture? Take 100, and keep the best 1.
Additionally, it has full manual override, and a hot-shoe for an external flash. The body style has that same "retro" traditional camera look that others have mentioned here. Overall, I am a prosumer, and I love this camera. It (and other cameras mentioned here) are why I don't see any need for an Apple-branded digital camera.
I also own a Canon Elura, and for my purposes, it is great. It has been really solid for me, and very easy to learn/use. As a side note, I originally bought this thinking that I could use it for stills as well...that idea faded once I saw the quality of the stills it was taking. They were horrible. But, I think this is getting better with newer models. But, it appears that you still need 2 cameras if you want good stills and good video.