The beta version of Windows Security Essentials is out. The download is available from here: http://go.microsoft.com/fwlink/?linkid=153446

I got it installed and I'm pleased to see that the application is antispyware (seems to have shutdown defender) + antivirus in one and that the updates (including the virus/spyware definitions) come via Windows Update. Nice move!

Who else is giving it a try?