The whole concept is the way to go. Thanks for your work on this tool. I do have some questions.
First, I think I have downloaded the app. There was no choice on the Apple App Store for just downloading the app, but it appears to have downloaded OK by selecting an actual route. I'll be downloading the free route segment to try it out. If this isn't how you download the app, please advise.
Second, what is AC's plan on updating the online maps and associated information? You're certainly capable of rolling in changes right away, perhaps after verifying them. Will the information in the Addenda for paper maps be folded into the online maps, in a timely manner? This is really a work process question, but the process is always more important than the tool.
Third, THANK YOU for including a real Help section. So many tablet apps have no help, no manuals, and no contact capability. (Or its poor cousin, relying on other users in a forum for user assistance.) You're expected to intuit how it works, and sometimes it isn't intuitive - these people make me nuts, and I refuse to use their apps. You have a brief but apparently complete how-to, backed up by this forum. Good job.
Fourth, will the downloaded sections align with the paper map sections, and carry the same numbering? It would be poor form not to. I think I saw that the sections download, just wondering if you'll be carrying the same identifying map and section numbers.
Finally, it is my intention to purchase the Northern Tier sections that I have occasion to use. Any idea when they'll be released?