The RSS OS will NOT be shipping this christmas, as has been expected. It was only a few weeks ago that Microsoft announced they were ‘boxing up’ Vista. 
Microsoft Delays Vista:
The postponement to January, announced Tuesday afternoon, is a high-profile setback for the long-awaited upgrade to the software company’s biggest and most profitable product. As [...]

Looks like Vista is not far from being done. In fact, cNet says they are ‘boxing up‘ Vista right now:
Microsoft did not disclose pricing for Vista, although Goffe said Vista Business will be priced similar to XP Professional, while Vista Home Basic will have a price tag similar to Windows XP home. Vista Ultimate will [...]