Sony recently confirmed that Uncharted 3 will require an online pass for multiplayer, and now it seems that this will be the case for ALL future releases with online play. Basically, games with online multiplayer with come with PSN codes, kind of like CD-keys for PC games. Read the source article here: http://www.gamesradar.com/sony-confirms-all-future-online-games-will-utilize-psn-passes/
I'm not really sure how I should feel about this. I mean, in general, it sucks. We're going to have to type in 12 digit codes every time we get a new game, but we'll only have to do it once so it's really no big deal. However, it's going to be near impossible to lend people games and expect them to enjoy online. Also, if you buy the game used, you'll have to pay a small fee to get a new code.