David Pogue of the New York Times reviews the Sigma DP1 in simple and easy terms, and avoids the incomprehensible jargon that we photographers get turned on by.
Here are some of David's key statements:
"The camera is slow, too. Slow to turn on, slow to focus. Action shots? Forget it. It’s even slow between shots; it takes two seconds to record each JPEG-format photo, and a ghastly seven seconds for each photo in the RAW format."
"The screen has other issues, too. In low light, it actually switches into black-and-white. The pictures you take are still in color, but the screen is monochrome. What the heck?"
"Finally, there’s the lens cap. Not to be a nitpicker here, but come on; not only is it not built in, it doesn’t even have a little loop for tying it to the camera. And it snaps back onto the lens in only one orientation: logo upright. You’ll lose this thing in a week, guaranteed."
And that's not all there is to it.
So despite Sigma's technological breakthrough of building a large "DSLR-sized" sensor and fitting it in a small pocket-sized camera, I'll wait it out.