
Today was a the fourth anniversary of WoW's launch (though the anniversary of the European launch isn't for another couple of months) and Blizzard gave everyone a couple of rewards: Characters logging in today received a commemorative achievement (I presume time-limited to Sunday 23 November) and a "baby blizzard bear" pet (which is in the mail, so I presume isn't as time-limited). Bad news if you didn't log in today (as I was tempted not to, having been out of town yesterday and not back home until mid-afternoon today) but a nice treat for those who did. I put a message up out our guild ML to try an get people online but I suspect some will have missed out.
It was still available yesterday, by all accounts.