Thanks Brian. Yes I do miss the eye level viewfinder. Thinking about picking one up. We'll see.
Ashwin, I am still evaluating how responsive the Rx1 is for street photography. As you know, street photography is anticipating the moment and then taking the shot. As long as your anticipation is better than average, I believe any camera can be used for street photography - you just have to learn a camera's strengths and weaknesses and adjust accordingly to get that shot.
I once used a Hassleblad for street photography in Hong Kong. Worked surprisingly well - just a bit too heavy and obvious for prolonged use. My Nikon DSLRs, Fuji X100, Fuji Xpro1 and Sony Rx100 have all been successful street cameras for me.
Regarding the Rx1, the first thing for me is getting comfortable with the focusing capabilities. So far, I can't autofocus fast enough for many of my shots. Don't know if it is me or the camera. But, that's OK, because only my Nikon DSLRs and to some extent the Rx100 have been capable of sufficiently fast focusing. I may end up using zone focusing which is what I did with x100.
The next important thing is exposure and the Rx1 seems plenty responsive. So far I like adjusting aperture and shutter speed manually and setting iso to auto. No problem with the shutter speed dial not on top of the camera. And I'm always adjusting the compensation dial. Kind of gives me the feel of control even if I'm only making adjustments of 1/3 of a stop.
Another learning curve is how to hold the camera for street photography. I use a number of techniques but each camera is different. Waiting for a gordy strap to see how it affects my holding technique.
So far I really like the Rx1. Why? Because the Sony Rx1 is a true pocket hercules of a camera - carries a full frame, great low light, great dynamic range powerful punch in an incredibly small, unobtrusive package. Nothing quite like it.