I have been involved on a local focus group about writing secure code. Basically the idea is think about how Microsoft can help the developers in doing secure code, with a similar meaning as the book Writing Secure Code.
I would like to ear about what we are doing well and bad, what is more important (for instance, help in the design, construction or testing phase, samples, guides...), and, of course, what can we do for having more secure code developed on the .NET platform.