Bloggs:
Gotta disagree there, AT. I have just started using an electronic charting app for my area of op (Non Jepp) and it is great. It's a scanned version of the paper. Easier to use, especially with "own-ship" position displayed. I can zoom in, instantly change to a higher-res terminal chart with two taps. The Enroute Hi chart is 65mb (3000nm x 2000nm) and great resolution. The USA obviously has far more data on charts, but if those idiots at Goooogle would allow app access to the SD card, storage wouldn't be a problem for scanned paper charts.
I have no issue with that setup. I have Jepp FD on my iPad. The approach charts, SIDs, and STARs are great. But, Jepp still sends me paper en route and area charts and they have advised me more than once not to use the FD en route charts.
My problem lies with someone authorizing those particular e-charts use when Jeppesen themselves advises not to use them.