Our NEO's use a handheld computer for rounds with the AutoTour software as well. There have been some rumors about trying to get something a little different that might also have a camera in it so they could take pictures of equipment deficiencies such as leaks and reference the location (or if possibly link directly to them) in work requests and our corrective action program. It is felt that such things could help monitor if something is degrading since the same NEO may not have the same watch station all the time.
At present, our PJB's are mostly already made up for routine jobs. We simply print one off and ensure we go over what is required. Typically the OE they contain may be useful since we have a lot of new people, but is sometimes dated. We don't have any 3d modeling of systems. The closest we come is that in some training power points, there is a little modeling done. We do use a lot of drawings in training that are full color that show the basic system along with setpoints, interlocks, etc, that most people find useful. This information is not available in the field via the handhelds and the training documents all have a "for training use only" disclaimer. The training material is available online and can be readily referenced.