I don't think there is one yet. With all the camera-centric talk surrounding the 1020, they really should up the accessories production. Just take a look at the amount of stuff you can buy for the gopro.....
This just gets more and more frustrating and pushing me from the Windows Phone.
I love the 1020 but stupid things get dropped like no Bluetooth shutter remote capabilities, no solid podcast support like they had with Zune/7.x.
If the 950's haven't the Bluetooth camera remote capability, I'm sticking a fork in it and move on. I loved the phones since the 920 came out but ignoring the minor details found on the other guys just makes me toss the WP and move to them.