Sony RX1 and it's effect on the Leica world

The RX1 looks a impressive camera but not as impressive as it would be with a built in optical viewfinder.

Fixed lens, autofocus - a decent viewfinder with a brightline frame would have cost almost nothing to add and it would have then been a much more desirable tool.

I am looking forward to a full review with, perhaps, a test against an M9 (M10) with a 35mm lens.