There was an awesome article in the IEEE Spectrum years ago detailing the hurdles the C64 designers went through while building the machine. I scanned the article and placed the DjVu e-book here:

http://retro.icequake.net/commodore_64_design_case _history [icequake.net]

Hope this is of some interest to the sort of people who would be interested in the XGameStation.

Score:3, Informative