The Radio Silence from Black Pixel is maddening. I too use a split reader system -- Reeder on iOS and NNW on Mac. I have no clue how long I've been a NNW user, but long enough that I've been with the program through several owners and I've paid for it several times.
It's time for me to switch out of Google Reader.
I'm probably going to Feed Bin.
Since Black Pixel has held its cards so tightly, I'll probably go looking at other desktop clients (Even though I don't really want to -- I just want NNW!).
Once I buy into a different client, I may or may not come back to NNW, even if they support Feedly / Feed Bin.
Come on guys...your users want to have a week or two before the Google Reader cutoff to migrate. Don't leave us hanging!