Thanks for your feedback/comments on this decision. As I mentioned, this was a very difficult decision we had to make. Remember, when we started this project, we could have very well said we are not going to support C++ and spent our resources on other cool features that we had to cut for V1. Instead we continued on our effort to support C++ and only when we realized that we couldn't deliver a high quality product that we made the difficult decision to cut this feature. We felt that support for Intellisense, Project and Build System which are heavily used features required more attention to quality. Certainly support for C++ in Class Designer will be a very high priority in the upcoming releases.
More comments and feedback can be found here: http://blogs.msdn.com/classdesigner/archive/2005/03/04/384764.aspx#FeedBack