Last Friday, I gave a talk on the P&P software factories at the December edition of the Software Developers Event in Ede. As can be expected from an enthusiastic audience, somebody asked me about the comparison/positioning of the Web Client Guidance Bundle's Model in relation to the new MVC Framework.
In response to that, check out the somewhat older announcement made by Glenn Block, product manager for the factory over here. For a comparison between the two patterns, check out these two excellent posts: The ASP.NET MVC framework, using the WCSF as a yardstick! and Interactive Application Architecture Patterns.