You can play PS3 games on your PS4 with Sony's PlayStation Now streaming service — here's how

You can play PS3 and PS2 games on your PS4 or PC by signing up for PlayStation Now, Sony's game streaming service.

'Do PS4 controllers work on PS3?': How to connect your PS4 controller to a PS3 in 2 ways

PS4 controllers will work with a PS3 console, and when you use a wired connection, there is no setup involved. Here's what ...
The Droid Guy

Is The PS4 Backwards Compatible True or Just a Myth?

The PS4 does not support native backwards compatibility for games from the PlayStation 3 (PS3), PlayStation 2 (PS2), or PlayStation 1 (PS1). This means that retail or digitally downloaded games from ...
Time

You Can Play PS3 Games on Your PlayStation 4 Next Year

We’ve known for some time that Sony’s planning to fold PS3 games into the PlayStation 4’s ecosystem vis-a-vis Gaikai’s cloud streaming tech, but we didn’t know when — until today. While we’re still ...