It isn't quite here, yet, but some examples clearly exist, finally, and DPReview has just published
some snapshots they made with one at PMA.
The snapshots look pretty decent!
Here's the
official web site for the DP1.
Rumors are that it will enter retail in the neighborhood of $800 at some point this "spring".
Along the same vein, the second generation Ricoh GR Digital is supposedly now in the wild, although I haven't read a review of it.
Sean Reid has posted a review, but you have to pay for it, and I'm not yet a subscriber of his.