I posted this in qdn.cafe, but forgot to spam comp.os.qnx with it 
I’ve posted a sample ramdisk (alpha quality code) implementation to
http://www.parse.com/free/ramdisk.html
It includes source and executable for QNX 6 / Neutrino.
The webpage sez it all, including any release notes etc.
Cheers,
-RK
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.