I ordered on the morning of March 7. Got the email last night with "Estimated arrival date: May 22, 2012". (I'm in Alabama). Seems like these May dates are all over the place regardless of when you ordered.
Got another email from Amazon this afternoon - "New estimated arrival date: April 03, 2012." Charge is also now pending on CC and order status says "Shipping Soon." I have 1 day shipping, so I might get it before the 3rd. Very excited!