There's a project to enhance the open source
version to feature parity
 and more, the DR-DOS Enhancement Project.
 
http://www.drdosprojects.de/
 The management of Lineo set up a new company, DeviceLogic. They're
 offering DR-DOS 8 now.
 
http://www.drdos.com/
  The bummer is, I've got a CD with the full sources and build chain for
OpenDOS 7.01 - but can't release it.  I got it when Roger Gross and I
thought that Caldera was going to go the whole route and open source it
all.  That was back in '96.  At least I got 'em to release GEM and
related software. :)
g.
--
--
"I'm not crazy, I'm plausibly off-nominal!"
Proud owner of 80-0007
http://www.f15sim.com - The only one of its kind.