Just a quick ist of reviews I saw looking into the new M9.
Luminous Landscape. He loves it.
Jonathan Slack's review (lots of great pictures)
Dpreview. They also actually touched one.
Focus Numérique. If you read french. They have some 100% blowups of high ISO images.
Ken Rockwell. He doesn't have one yet, but still waxes lyrical.
If you know of any more let me know. Concerning reviews, I just don't understand why Leica doesn't think I am worthy enough to test one ;-) . Of course, I am far from wealthy enough to be able to afford one, so I am decidedly out of the market. Still it is is nice to finally see a nicely simplistic, well designed, rangefinder camera with a full frame sensor.
EDIT: Another nice one here from David Farkas.