..while we were preparing for our move..
The company chose my 48th birthday (two days before the movers descended on us) as the RTM date for SQL Server 2008. There's a full download available here (subscription required); the free Express version is available here.
There are so many new features in the full version of the product that I'll just link you to them.. but you should absolutely read the article.
You TechNet subscription holders won't be sorry for downloading the full product; Express is also very cool as well. It's a terrific piece of software -- even if I'm pretty sure the RTM-on-my-birthday thing is a coincidence.