Thanks to our friends at EP Levine, and Stan Bucklin, the Northeast Leica guy, we ran some shots.  I don't want to ace out our testing guys, so I'll keep it brief...  but these shots are at ISO 800.  I'm showing the details at 100%. The test boys should have something up on the main site by this evening.
 

First, the meter got fooled by the backlight more than I'd like it to.  Other shots with the subject in the middle, and no backlight, were better exposed.  These were a little dark on my subject, and it was just that light in the ceiling that did it. 

 

Here's a detal of the background- it's a bit out of focus and the noise is pretty apparent. 
 

Now- a detail of the skin. 
 

OK, this is going to sting, but the last time I saw skin transitions on a file like this were on the old Kodak ProBack 645. 
 

Ouch.  That hurt even me. 
 

Addendum:  I'm kind of tired of hearing that the shot is dark.  I didn't post this shot which is even worse, since I didn't have a release for this gentleman- but here is a better exposure.  The trademark magenta cast, (which, by the way, harkens back to the old days of the Nikon D1x), and the noise is just astoundingly bad.  As I say in the comments below, these samples are completely in line with every single sample I've seen on every test site including our own. 
 

How anybody, ANYbody can claim this is a superior file, and a good performing camera at low light, I just cannot imagine. 
 

Here is the shot:
 

Here is the detail, at 100%:
 

Now just stop it.  You want to love the camera, love the camera.  But don't tell me it's a great low-light file, or a superior file, or even a good file by today's standards. 

And please don't telll me I don't understand how to use a meter.