Well, that sounded kind of discouraging. Was that your intention? I hope not
Concerning other apps: most of the apps I could help with have already exporters. Max is my preferred environment hence this choice.
The IndigoMax originates from an independent animation project, which is at the moment in preproduction. I'm responsible for rendering and i'm trying to convince some people that it might be possible with Indigo. So my main field of interest is rendering sequences, something that I failed to achieve with Maxigo (too many errors, not stable enough). I believe that an animation rendered with Indigo should become a nice advertisement of this renderer and draw some more attention to it.
I was happy to hear that Maxigo is being converted into native renderer, but since there was no roadmap nor announcements about release date, I decided to do it myself. I treat this as exercise in maxSDK, yet something other could benefit from. I believe that diversity of solutions is the best way to go. Somewhere in-between lies the perfect one. However your experienced help is more that welcome since as I see (from some past posts) your experience with C++ and MaxSDK is quite fresh.
Anyway, I'll continue to develop this plugin, hoping for some comments and feedback from you and rest of the community.
Regards and best wishes on your endeavours,