I feel really ignorant, since I don't know what Unity is.

Surprised it wasn't on PS3 considering a lot of games use it.

its a game engine

This is big? Why? What is Unity?

Wasn't Square using Unity to build a PS3/Vita game already?

"Of course, we already offer PS3 support and will continue to do so through Unity’s updates"

it already was on ps3. he was talking about ps4. ps vita, ps mobile and gaikai

to everybody who is asking whats unity, its an engine and here is there tech demo

Unity is a game engine (also known as middleware).

Well if this gets more games on Sony platforms, I will be rather happy

Now why is this big news?  Technically it doesnt even look amazing unless I'm missing something here?  I mean Unreal Engine, Frostbite, and Cryengine all look better