1. Glyph 7 may translate to pi, 3.14. The Mayans did not use our 3.14 for pi, however, they used 3 (I think, I'm not totally sure), a number on the outside of the dial. (Answer to the dials may be a combination of numbers found on the outer rings, perhaps leading to a web address of some sort? Ms. Bridge does talk about direction and location after all, implying that we may be the ones she is waiting for.)

2. 7 steps, 3 rooms? Maybe 7 dials, 3 games referred to, given that most people think the last dial is related to PiD?