I've been hunting all over for it, but I cannot find an RSS feed URL/Link.
The 'Faq' link -- http://forums.microsoft.com/WindowsHomeServer/languages/en-US/docs/faq.aspx?SiteID=50 -- in the upper right corner, mentions an XML link at the bottom of a page?
I think it would be helpful for me (at least for me -- maybe others) to become an even more active particpant if I were able to subscribe to an RSS feed for the WHS forum.