I'm so psyched. I just saw a build on the internal staging server of our community page, where it was displaying bits and pieces of Exchange blogs from the community (not just Microsoft). I'm told that they're troubleshooting some issues with getting it to expose RSS feeds for subscription as well.
It won't be long, now! I can almost mark that task that I created 10 months ago (“Pester web team asking about RSS support“) as complete.
[Update: The MSCOM Community team blogged about this]
[Update 7/14: Here it is!]