Just appeared on the store, free for PS+ members is the download of KZ-SF and you get the choice between downloading SP or MP first!?

This is the EU store btw (the MP demo is also on the US store)

Not quite sure what it means but im presuming its an open weekend at the full game? Although in the overview box it says that i can download this exclusive item and it's mine to keep until subscription to PS+ ends.

Hmmm....