Green Ronin's guide did draw a little new info from GoO's that I put there when I worked on GoO's game. GoO's gameĀ  guide is "semi-canon" because I can vouch for the fact that some of the details came from GRRM (although some are now out of date!), but to my knowledge GR's game was dependent on details from GoO or was just stuff being made up for the purposes of the game. In particular, geographical information that is unique to GR's games can't be marked as canonical in any way because GRRM is