According to activision/blizzard conference call Q2 release date now targeted, release details will be announced in the coming weeks.
edit added from freelongs post
We have implemented changes which will greatly improve the game experience and final release will live up to the highest expectations. We expect launch to be a big opportunity for Blizzard. More details will be announced in the coming weeks.
It'll be fine. We'll have some info real soon on skills and runes, a new patch, and we'll be cookin' on the road to Releaseville.
Can't we just enjoy eachothers company?
We've only ever said "early 2012". And we just decided we'd need until Q2 this week. Seems like the conference call was as good a place as any to announce that.