“A.”, a friend of The Online Photographer has summed it up nicely (while I’m dancing around proudly of this coming attraction):

By showing just how compact a full-frame camera can be, it’s hard not to think the M9 will serve for years to come as a benchmark in “large sensor/small camera” discussions.

A little objection to Mr. A: I’m young and I consider myself digital, but I’m well aware of how brilliantly small M cameras and its lenses are!

Read: The Online Photographer: The World’s Most Compact Full-Frame Camera