"Estimated delivery Apr 2017"
I think they're more than a little overdue. : P
When they announced switching to the V1605B nearly a year and a half ago in early 2018, they were supposedly nearly ready to release the device then. According to Tom's Hardware's article...
The Smach Z development team told us that the device is currently undergoing final fixes and tweaks, and will soon head into the manufacturing phase with the goal of starting shipment in May. Mass shipment is planned to follow in July.
As for the hardware updates...
Logic tells us that the move from the V1605B to the V1807B should increase pricing across all three Smach Z models.
Logic tells me that this first-gen 14nm Ryzen embedded hardware has now been out for a while, and they may be able to get the V1807B for a similar price to what the V1605B would have cost over a year ago. I wouldn't be surprised if we saw 7nm Zen2 embedded processors before too long. Perhaps they actually intend on moving to one of those chips?
Going with anything more than 16GB of RAM seems a bit silly for a device like this though. Current games are unlikely to benefit from more, and any future titles that eventually do would probably not run acceptably on this hardware anyway. Sure, RAM might cost less than half of what it did when these specs were last updated, but having extra ram drawing power and doing little else is probably less than ideal in a portable device with limited battery capacity.