There is a sad tendency to be overcritical. This seems to me to be a bold effort, though I shall almost certainly buy the full product, which greatly impresses me.
Is this the final official recognition that flight planning with chart and protractor is not fit for purpose in the 21st century? Given that this comes via NATS Infringement section we can assume that it is driven by safety issues surrounding incursions. No one can deny that plotting on this sort of tool is better than reading off tracks from a protractor on a chart.
I do tend to agree though that the ideal development would be a software version that can be downloaded for those occasions when there is no internet connection available. This surely cannot be too difficult as it seems to be based upon the full version of the program?