Codename Morro - now Security Essentials
Neowin has some details on codename Morro, now called Microsoft Security Essentials - rumoured to go into a public beta form soon. You can clearly see how this was built upon the excellent anti-spyware software Windows Defender that Microsoft included with Windows Vista (and made a free download for Windows XP), you can see it even more clearly in earlier builds. Hopefully this will be everything the PC ecosystem needs it to be....