March 24th 2009 is the magic day for many Autodesk Products to start shipping and a few others a little bit beyond that day. AutoCAD 2010 is the 24th release of AutoCAD.
If you are an Autodesk Subscription customer and have download permissions from your Autodesk Subscription listed contract admin then you can go get many products by download instead of waiting for the delivery person to knock on your door.