Got one (DP2 Merrill)
No pictures I want to share yet - just a quick technical set (having a lot of difficulty recreating that flare!) but wow - that lens is really quite impressive. And it seems to come with a free camera that is certainly no slower at shooting raw than my SD1 - it actually 'feels' quicker, but I'm sure the data will suggest otherwise.
Looking forward to the DP1, as I think the wider lens is more to my taste. If it's as good as this...