Steve Jobs let loose with details on Apple's new socially networked Game Center last week at a press conference, and the service arrived yesterday along with the iOS 4.1 update for iPhones and iPod touches. 3G iPhones and 2nd-generation touches won't be able to use the software, but everyone who does successfully log in and set up an account will be linked in to leader boards, achievements and other features for equipped titles.

"Game Center is all about multiplayer games," Apple CEO Steve Jobs explained during last week's presentation. "It allows you to challenge your friends to games, and they can challenge you. If you don't have any friends it will automatically match you. It will allow you to compare scores, and discover new games."

You should see the Game Center icon show up on your screen as soon as you're done with the update. If you don't happen to have any games installed to bolster your achievement numbers, Apple's a step ahead of you there as well, as they've set up a Game Center section in their App Store.

Right now, the big titles in there include "Real Racing," "Flight Control" and a handful of others, though Apple will surely be pushing other developers to tack some achievements onto their games in the coming months, so keep an eye on your update details as they appear.

What do you think of Apple's Game Center? Which games would you like to earn achievements with? Share your picks in the comment section below.