I'm waiting to hear how the auto focus is. I'm an RX1 owner and while the high ISO processing is great, the AF in non-perfect light is bad, and awful in low light. Enough to make me not want to bother sometimes. If the AF is improved, I'll sell my RX1 and hopefully get the A7r + lens combo for not too much more. Still not sure though. Not really shooting digital that much these days. If there's a Leica M-mount adapter, then I may not bother with any of the native lenses assuming manual focus is intuitive.