That's not all Share Play does though. You can also invite a friend to play games that have a local co-op option. Aside from the obvious utility of being able to play with a friend who doesn't own the game, this is also a boon for games that lack any formal online multiplayer. How many times have you wished Towerfall Ascension had online multi so you could get a full four-player game going without having three smelly humans in your home? Probably lots. Share Play will solve for this...but only if the people you want to play with are PS+ subscribers as well.That's one of the caveats: co-op requires all players to have PS+ in order to play. Furthermore, all Share Play sessions, co-op or otherwise, are capped at a length of one hour. Once you hit the limit though, you're free to start another session with the same members immediately, as many times as you like. This is, of course, to prevent people from setting up a Share Play session for a friend, and walking away to let them play the game in its entirety without purchasing it.
Share Play is easily the biggest new feature in firmware 2.0, but it's far from being the only significant one. Check back on IGN Tuesday for a video walkthrough of many of the new additions featured in this update. Vincent Ingenito is IGN's foremost fighting game nerd. Follow him on Twitter and argue with everything he says about them.