Came across an interesting comment on one of the lists that I am on.
It would appear that Michael Howard and David LeBlanc, the authors of Writing Secure Code, are working on a new book with John Viega (Building Secure Software) and David Wheeler which is scheduled to hit the shelves in about 6 months. According to LeBlanc, they specifically chose this set of authors to provide really good cross-platform coverage.
Looks like a must have book!