The ramifications of this are quite incredible. Notably game companies, who have shifted to digital distribution to shut down the aftermarket sales, are undermined.
I’m not quite sure how DRM factors into this, but seemingly this ruling overrides any attempt by software publishers to prevent resale. This includes the App Store; this judgement gives people the right to sell their iOS apps on to other people.
The level of compliance necessary by software publishers seems undefined, at the current stage. For example, do Steam or Apple have to implement features in their stores to allow resale? Or is it implicit - people are allowed to resell digital goods if they can crack the DRM and associated policies surrounding it?
This is a very interesting decision, with wide-reaching implications. Therefore, there are probably a million companies ready to oppose it. Bring on the appeals …