These Windows Live services keeping popping up. The general public can now sign up for the Windows OneCare Live beta. More information about the new beta can be gleaned from the blog post entitled Consumer Beta Goes Live! from the Windows OneCare team blog. For those who are wondering what the service is below, the following brief description may help
What it is: An automatically self-updating PC health service that runs quietly in the background. It helps give you persistent protection against viruses, hackers, and other threats, and helps keep your PC tuned up and your important documents backed up. What it does for you: • Runs quietly in the background, providing anti-virus and firewall protection • Updates itself to help you keep ahead of the latest threats • Runs regular PC tune ups • Provides one-click solutions to most problems • Makes back-ups a breeze • Lets you see the status of your system at a glance Frequently Asked Questions What is a beta? Beta is geekspeak for “not finished yet.” A beta product is something we are still working on and invite regular users to test out. We’re asking you to check out Windows OneCare Live beta and let us know what you really think—good and bad. That way, we can make the final product the best it can be. Does it cost anything? Nope. The beta version of Windows OneCare Live is free, though the final service will be a paid subscription. What if new viruses or other Internet threats come out? Windows OneCare Live regularly updates itself based on emerging Internet threats. So you can have better peace of mind.
I've had some interaction with the OneCare folks as part of my day job and the definitely are working on building a compelling service. Give it a try.