Microsoft describes OneCare Live as a PC health service that runs continually in the background on a PC, providing round-the-clock protection and maintenance capabilities. The product includes a virus scanner and a two-way firewall, performs various system tune-ups, and has a data backup feature. Later this year, Microsoft will also integrate OneCare Live with Windows Defender, the company's antispyware solution.
John Dvorak has this great quote about OneCare:
Does Microsoft think it is going to get away with charging real money for any sort of add-on, service, or new product that protects clients against flaws in its own operating system? Does the existence of this not constitute an incredible conflict of interest? Why improve the base code when you can sell “protection”? Is Frank Nitti the new CEO?
There's more here: http://www.tonybove.com/getoffmicrosoft/blog/?p=27