Hyperion have actually gone out of their way to deliberately put DRM crap to artificially prevent it from running on most machines that would be otherwise capable. Similar to the crap Apple does with their worthless OS.
There is no DRM in OSX nor is there any in OS4 either.
Lack of hardware drivers for other machines does not equal DRM.
Using your twisted logic one could say OS 3.9 has DRM because it doesn't run on Atari ST's or 68k Macs.
