as our primary goal is to get the S-63 plug-in ready we did not make too much "market research" up to now.
But as you say it looks like that Chartworld is at this moment the only convenient "retail supermarket" for S-63 sets.
We have bought some charts there some days ago and those are working well.
From OpenCPN/o-charts there is an agreement with Chartworld in place. We are talking with UKHO and AHS (Australian Hydrographic Service) as well.
But no final conclusions yet.
The others are mainly focussed on the commercial
and administration market - as the whole IHO/National HOs/RENCs/VARs world.
Generally they don't have procedures how to deal with a "final customer", have the fear that these will complicate their operations and thus prefer to delegate into the VARs (The Navionics
, Jeppesen, Garmin
etc.) or subordinate resellers.
Which results in vendor lock-in and official charts not at reach (at an interesting price
level) for the common sailor.
All parties recognize that there is an issue - but perhaps we will have to help to find solutions. Those will not come by themselves.
There are OEMs which sell PRIMAR generated S-63 sets, but we have not contacted PRIMAR yet to get their point of view.
From our talks we gained as well the impression that there is a certain fear that selling "official charts" under license
conditions different from the commercial
world might undermine the whole S-63 construct.
Here the involved parties might learn from the software
industry, where specific licences for the commercial and private use are common.
All this is on the do-to-list once we have the S-63 part fully operative.
Suggestions and contacts are very welcome.