Microsoft's new (and free) anti-virus program will be launched tomorrow. It's not going to be called Morro anymore, though. This codename will be dropped and the final product will be called Microsoft Security Essentials.
As previously noted, this package replaces the underwhelming Windows OneCare, which is being discontinued. Even if Microsoft Security Essentials fails to ignite the world of anti-virus protection (and I'm not holding my breathe), at least it will be free. OneCare was a fairly expensive subscription-based package that contained an average (at best) anti-virus product alongside a bunch of system utilities that Microsoft should have included with Windows for free.