I’m a huge fan of CTPs (Community Tech Previews) but recognize that we’re still learning about how to make them most useful for both Microsoft and our customers.  One of the side-effects of shipping software more regularly is that it complicates the matrix of products that work together.  Some folks I work with put together this clever webpage that helps customers and partners determine what’s compatible with what.  I have several CTP related posts in the works, but for now, if you have CTP madness, please bookmark this site:  http://channel9.msdn.com/ctpmadness.

Enjoy,
jeff