I now have confirmation from a contact with Pocketbook. The companies did indeed split up. They're still partners in that Pocketbook currently license several Netronix designs, but they're not one company anymore.
I was told that the reason for the split was quality control issues. I don't think this had to do with production , but design. I believe Foxconn do the actual mass production - once the bugs are worked out of the design. So I would guess that Netronix were having trouble working the bugs out.
TBH, we really should have figured this out a while ago.Do you recall when Pocketbook announced the 60x and 90x ereaders? Those ereaders were designed by Foxconn, not Netronix. The fact that Pocketbook went outside the company for the new designs probably should have been a tip off.
Then again, maybe not. Companies change their minds all the time.