From the Team17 forums to your screen:

Spadge (Moderator): The title has now passed certification and is good to go. We are now working with Microsoft with regards to finalising our release date. Thanks for everyone's patience. Not long to wait now.

Finally! While they didn't mention a release date I'd say it's probably safe to assume that we'll all be exploding sheep at one another within the next couple of weeks.

via XBLArcade