@goneagainjon - Unfortunately the Avenza Map Store license is not compatible with the license I released the map under.
Essentially the simplified version of how things were set up is: the map is copyrighted, meaning that it (basically) cannot be distributed without explicit permission. However, I added an exception such that you may re-distribute it if you agree to a specific set of terms about how and when that is permitted.
If you're interested in the specifics you'll want to read the Creative Commons license I used for details, but the jist of it is you can distribute it to others only if it's done so non-commercially, credit is given, and it's not a derivative work.
The problem is that in signing the license with Avenza you need to agree to a number of things that contravene those terms (among other things, you need to certify that ownership the maps at all times remain with you, authorize them to reformat the map and add security features to it, etc).
While I wanted to distribute the map quite openly, the restrictions I added on how it may be shared were very important in my feeling comfortable doing that. In particular, I was okay with one member of the canoeing community sharing it with another member of the community (as my way of giving back), but the moment any money or business was involved I wanted to have control on how or if that happened. I hope that makes sense 
APPaul's solution is a great one though! The KMZ is compatible with a wide range of software and has coordinates embedded. I don't think Avenza maps accepts that format, but someone similar should (Google Earth for example).
FYI the new map will be available as a free jpg, on iOS/Android (in a different app), Garmin GPS's and Google Earth when the time comes =)