@Swedish_Chef: It's not a monthly rental. You keep them as long as you have PS+ subscription. Just remember to download them before they expire or you missed your chance.

Congrats man! :)

Old version for sure

There's no split-screen multiplayer. I'm guessing that's the same for single player too.

http://blog.us.playstation.com/2013/08/28/killzone-shadow-fall-ps4-multiplayer-hands-on/#comment-890461

I think it's only available for EU. Demo is 5.8GB.

September PlayStation Plus Preview

For September, Resident Evil Chronicles HD Collection is leading the charge, so you can break out your PlayStation Move Controllers (yes, regular controllers work too) and start destroying zombies. Later this month youll get the HD-remastered version of iconic PS2 classic ICO, one of Rockstars awesome portable versions of Grand Theft Auto (in this case, GTA: Liberty City Stories), Ubisofts loveable platformer Rayman Origins for PS Vita and the classic arcade shooter Galaga Legions DX.

Playstation Blog