rMME runs well on the modest graphics of my 4-year-old iMac (512MB ATI Radeon HD 4850).
I got used to the controls after a short while. I only miss the variable walking speeds that an analog stick (gamepad) provides, which I admit is a very minor point from a minority of players. It's something Cyan might consider for future 3D games, tho...
As for the RIUM book: I didn't know anything about the book, but it's listed in the opening credits.
Also, I *love* the flashlight. No chance of me being eaten by a grue! (Oh, my, I'm an old gamer...)