fyi, the hope is to get a FAQ out before the print version dealing with lingering questions from the core book. Some of those made their way into DT (the change ownership Hardware Test, for example), but it's hard to stuff all that in and make a readable product. A few things in DT will be mentioned in terms of how they interact with older stuff--Quick Config and Perfect Time, for example. MMRI essentially does replace MoM--apparently lots of people thought they got a magical thread of wire and a hole in their temple. People are weird. Or at least overly pedantic.
I wanted to be sure to say thanks to the community for generating all sorts of helpful and interesting ideas and questions when it comes to Matrix-related stuff. It was immensely helpful to have as a point of reference. I especially want to thank Xenon (who I suspect has written more words about the Matrix than are actually in Data Trails) for sharing his thoughts.
I'm up against a few deadlines (both SR and work induced), but if you have DT questions, fire away and I'll try to answer as many as I can.