The PS3 version of Diablo III has an "exclusive pre-order bonus"—a phrase that makes me cringe every time I see it—and it's called the Infernal Helm, an artifact that boosts your experience rates so you'll level up faster.
Blizzard just announced the bonus today, along with news that there's no news on a release date for the console version of Diablo III (which could be the definitive one) just yet. Just "later this year."
So what do you think? Worth pre-ordering?