Sony opens a new area of its store for "PS3 Full Games" today, with Red Dead Redemption, but Sony's been selling full retail games on PSN for a while. It just didn't have a name. Joining that pseudo-groundbreaking release today is Telltale's Jurassic Park adventure, BurgerTime World Tour, and Hollywood Squares.
If you'd rather augment a game you already have, there's some Uncharted 3 multiplayer accessory DLC. Find all the details, plus more downloads, at PlayStation Blog.