Didn't redhat just gpl eCos and assign the (C) to the FSF? If that's what the Karma is using, then I'm not sure what the difference is between using eCos with DRM and linux with DRM...

(or maybe versions before this recent move continue with their old license....or perhaps it was dual licensed?)

We got Ecos under their old licence, the RHEPL (we also downloaded Ecos 2, available under a licence which is the GPL with the requirement to GPL linked code removed). As the FSF are becoming the new copyright holders of Ecos, they can if they wish release future versions under "pure" GPL instead. But even if they do, that doesn't retrospectively affect the licence under which we got our copy.

(I suspect the overwhelming majority of users of Ecos wouldn't migrate to a "pure GPL" version for exactly the reasons we wouldn't -- I don't think many hobbyists use Ecos, it's all commercial companies. A hobbyist would surely use Linux instead.)

Peter