It looks lovely for some of the things we do in production, but it's not something we'll move to till we can manage to get to 4.0 and VS 2010 first, and sadly, that move breaks existing code, so it's not a 'quick' change.
On a personal basis....as soon as I manage to get Visual Smalltalk, I'll use MVC. :) Then again, I just did my first ASP.NET page from scratch last week, so, gimme some time!
