Here is what RayOzzie wrote on his new Spaces Blog:
...A couple of weeks ago, Bill and I brought life to a new initiative that, over the course of the months and years ahead, will catalyze and deliver a number of things that I'm very excited about. At that event, I said that unlike many other stealth projects I've/we've done, in this case many of our plans and offerings will evolve progressively and in the open, shaped in good measure by a dialog with you. This is not just feel-good marketing speak: the conversation related to Microsoft - its reputation, its intent and its offerings - is occurring and will continue to vigorously occur on the 'net with or without us. I'd rather it be "with", and I hope to add value in becoming another of the varied Microsoft voices conversing on the 'net.
And yes, Spaces has a new theme only for its most prized Microsoft Blogger with a customized top banner! This special theme is, however, not available for the non CTO types!
Ray Ozzie Microsoft CTO Spaces