Comes with beta weekends and free pets.
This was an announcement I was waiting for - The Secret World pre-order info!
For pre-ordering The Secret World you get special pets, an in-game shirt item, and an item that boosts experience. But that's not it - you also get access to Beta Weekends, which is what the devs are calling special windows for pre-order players. They say they're doing it to keep rewarding those who have earned the right to be in the ongoing beta (which makes sense). But probably the nicest thing is how they're giving those with pre-orders early access to the game, enough time for them to reserve a hotly contested name (like "Mirai", for example).