Silent_Buddha
Legend
MS is always yammering about forward compatibility so ...
Forward compatibility is the same as backwards compatibility. For example, almost every program designed to run on Windows XP is forwards compatible with Windows 8. There are obviously corner cases which don't work, but by and large that's the case.
Basically forward compatibility means you are designing the console with regards to keeping backwards compatibility in mind for future hardware. Using a relatively standard x86 CPU and PC GPU architechture means that's going to be extremely easy. It also means that for future generations of Xbox, Microsoft isn't expecting to deviate from x86 + PC GPU.
It does not mean putting in features (in games for example) that are useless for the current hardware and only become useful when future hardware comes out.
Regards,
SB