Is this for sale yet?  If not, when will it be available in stores?  I didn't see any of that info in the press releases from NAB.

Hello!
The new released X5 adaptor is gonna compatible with X5R.

DJI-Adela Posted at 2016-4-21 11:35
Hello!
The new released X5 adaptor is gonna compatible with X5R.

Is it really?? Great news!!

Is it going to be or is it compatible now?

lukeneumann Posted at 2016-4-21 17:19
Is it going to be or is it compatible now?

Adaptor is compatible with X5R.

DJI won't ship the adaptor until firmware update is released, they say it should be within the next few days.

lukeneumann Posted at 2016-4-22 00:19
Is it going to be or is it compatible now?

Hi,
Physically, the X5 adpator is also compatible with X5R camera. However, to work perfectly with the Osmo handle, it needs a new firmware specially for X5R camera and the handle.
Please wait for the new firmware release specially designed for X5R with the hancle.
Thanks for your understanding and patience!