Well said, Paul. The reason that PDF will be with us in a digital road book world is that the problem it solves in the print world (documents print the same independent of the print system) needs to be solved in the digital road book world. Fortunately the inexpensive android/iOS devices, which you and others have demonstrated are reliable in race conditions, already support PDF document imaging. This makes it easier for designers/implementers of road book authoring systems such as Tulip and Rally Navigator. Both implement Open Rally in their output files and can be used by the RBNavPro and RoadBook Reader apps. The RN Reader app supports simple auto color markup of waypoints which works rather well. RN Recorder app makes it easy to include photographs in the instruction portion of a tulip. Lots of neat stuff simply because we are using low cost digital devices. We'll see a lot more digital road book application to areas other than the various forms of Rally Racing, such as dual sport rides, adventure travel, etc. Being able to do this inexpensively on digital devices we already own will make it happen sooner than we might now think is possible.