John, have you tested PocketCAD? If so, how do you compare this to PowerCAD?
At least in price, PocketCAD is "easier"

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I'm a Civil/Structural Engineer, and I work as field inspector. After lots of searching, I found RepliGo a good way to take AutoCAD plans (given by the project's architect) to the field for fast reference at any place of a project, and this for several projects, so I am well acquainted with the advantages of having a way to benefit from PDAs in construction.
Obviously, redmarking in the field to report any needed changes to the project's architect, or to record as-build conditions, would be the natural next step in this evolution, and this is beyond RepliGo capabilities. Here is where PowerCAD and PocketCAD come into play.
I just have tuned PPCT today, so I still haven't read the full review. Did you make any remark on how easy is to deal with different colors of the lines under field conditions? For example, under direct sunlight?