posted by Kao on Jan 18, 2018:
Document from Microsoft in early 2001 helping developers understand what to expect in the transition from the Alpha 2 kit to the first attempt at the final hardware.
https://mega.nz/#!G4lGRLyT!ng7y4S7LpEWwkajNvNBANZHl9xNIdYrjpY0yoFSoQQE
Has some good technical information while still being pretty readable. Might be of interest to this community, and I've never seen it uploaded.