I'm told they are shipping "any day now", lol. I've only been waiting since January and have been told by my dealer (Dale Pro) at least 3 times in the past that "they'll be shipping in a few weeks'.
I had sold my surrounds about a month ago in anticipation of an imminent release, so I haven't had surrounds for about a month now.
But the M2's have an amazing way of making me not really care about it all that much. But still, it would be nice to have some surrounds again.