A patch for a product that wasn't fixing a defect as it's primary
purpose, or had defect fixes included?

If Novell is going to restrict patches, presumably ones that just add
features and not fix defects, I would like an example of such a patch.

They can't restrict service packs if you follow that logic because while
the server packs add features, they also fix a lot of bugs.

Will Novell now be separating out the bug fixes from the feature
enhancements into separate files so that customers without maintenance
can get just the bug fixes?

About the only thing that comes to mind right now is the Zenworks
Imaging updates.