Entering PS Plus:
29th January: Metro Last Light
29th January: BioShock Infinite
29th January: Dynasty Warriors Next (Vita)
29th January: ModNation Racers: Road Trip (Vita)
5th February: Outlast (PS4)
Don't forget that you can add the PS4 content to your account even if you don't have a PS4 by using the web interface for the PSN Store.