I've been curious about it since I saw the notice that he might be writing a module for LotFP. Monte Cook seems to be favoring systems that he is terming "logic" based. I believe that most in the OSR would term these as "rules light," though, as Monte's own post on this subject points out, this may be an incorrect term for this style of rules. Hence Monte's logic based post. Even if he isn't officially OSR, having one of the "big names" i gaming backing up an older style of play helps those of us who enjoy that sort of thing tremendously.