i've been waiting for this since the first experimental Dimm loaded scsi SSDs
persistant ram is going to need a whole new programming model to be used effectively I feel.
storage is ram, and ram is storage. do a reboot/power off-on and just wait for the CPU to come back on line and carry on as you were. your machine is effectively going to be "on" from the first OS install to the final switch off. apps get loaded into memory and stay there. 512gig on a dimm? no paging? no "disk"?yes please!
BSODs gonna be a pain though.