As far as I can tell, it's owned by DR DOS Inc. which also had a d/b/a "DeviceLogics" that now seems to be defunct (inasmuch as devicelogics.com now redirects to drdos.com). However, the status isn't exactly obvious to me.
The only source release I know of that is still readily downloadable is at drdos.net, which is version 7.01.
The only source release I know of that is still readily downloadable is at drdos.net, which is version 7.01.