Paul has done a great review of Microsofts recently purchased Giant Anti-Spyware solution, which looks like a 100% Microsoft developed product. The product has both a client and Enterprise solution, which is said to have caught Microsoft’s eye and triggered the purchase.
I personally believe that Microsoft will not make this product or any of the other purchased security solutions available for free or come a part of Windows, but continue selling this as standalone product. I agree with Paul though that Microsoft should certainly give us the Windows users who have faithfully upgraded to latest from the company over the years to at least get this product as an incentive to continue staying with Microsoft.
At least make it be a part of the Genuine Advantage program.
Read the review here