Interesting thematic here is discussed. I am interested in similar issues. My new article about 64-bit development:
20 issues of porting C++ code on the 64-bit platform.

http://www.viva64.com/articles/20%20issues%20of%20porting%20C++%20code%20on%20the%2064-bit%20platform.pdf

I am expecting this may be interesting for you.