@Swarthy - what's the catch?
The catch is natural lock in - MS are pretty worried about rivals such as open source kits which are available for free, especially in this economy. This way they can pretty much eliminate the "free" aspect of the competition, and after three years (eternity for a startup) you've got the choice of paying them some actual money or porting everything to another system. After three years of development, the latter's not likely.
Also it's designed for companies that offer web design for other customers. So the customers have their website on an MS stack, if they want to take their business elsewhere, it'll have to be someone else who's on an MS stack, or face a more expensive rewrite.
It's a fairly genious marketing ploy. Everything gets based on the MS stack, which as we all know is fantastically interoperable with everything else out there.


