Hi there,
As we (You & I) suspected it is starting to show up , more info weekly 
This RRAM is cool, No bulk erase or anything close to the PITA for Flash and It’s non-volatile like flash. Probably why reading and writing will be different.
also this Trust Zone business getting in the way if you don’t have the build environment sorted… man a lot of stuff in there to go in here 
it’s like how the Python eats the Elephant, ONE bite at a time
I’m hopeful a number of things will be addressed / Tweaked on the next Rev.
The rep tells me there are more pretty cool Matter/ Thread examples coming, Super low power ones. I’m awake, polishing the metal.
The newer SoftDevice coming too is supposed to be the 
Bomb-Diddly YO! 
Someone is smart putting it out just enough to feed the tech junkie in most…bastids…LOL
HTH
GL 
PJ 