Microsofts SQL Server 2012 has RTMd. It will be generally available starting April 1.



From All About Microsoft:

So when can you get the bits? If you’re an MSDN/TechNet subscriber, you can download them as of March 7, the Softies said. If you’re a volume-license customer, you can grab them from the Volume Licensing Center on April 1. April 1 (no fooling) also is the date when SQL Server 2012 will be generally available to any/all interested parties. And if you want to take the evaluation version for a spin, you can do so immediately, starting March 6.

  Microsoft releases to manufacturing SQL Server 2012