It feels like inFamous: Second Son was a PS4 launch game right? It makes perfect sense.
But it's still not here yet, and in the meantime, Sony has discounted the entire franchise on the PlayStation Store in the UK. You can grab the inFamous Collection (€18.89/AU$28.05/£15.38), Infamous (€10.04/AU$12.02/£7.36), inFamous 2 (€12.99/AU$16.21/£10.39), or Festival of Blood (€6.99/AU$10.11/£5.59) for your troubles.
If you're a PlayStation Plus member, you'll get a 10% discount. Personally, I'd recommend Festival of Blood as it's my personal favorite (and doesn't drag, since it's a shorter experience), then inFamous 2.
Prepare for Second Son with big savings on inFAMOUS titles [Playstation Blog]