I'm working on a collaborative photogrammetry solution (think async/distributed 3d mapping from overlapping pictures) that shares data via IPFS. Flattering myself heavily, I believe this sort of public-data consuming application fits like nothing else.

You where going to contact me end of this week (morphle at ziggo dot nl) for the plant/species identification software: https://news.ycombinator.com/item?id=31537487.

Your collaborative photogrammetry can be combined with the open and free species identification API and my custom OpenStreetMap data extensions and KartaView/OpenStreetCam/OpenStreetView to get more photogrammetry location integration and more free crowdsourced open data to add to photogrammetry. A demo of Seadragon/Photosynth [1] inspired me to work on this.

[1] https://www.ted.com/talks/blaise_aguera_y_arcas_how_photosyn...

That sounds fascinating! Can you elaborate or point me to more information on it? I would love to hear your perspective on it from a real use case.

With pleasure, drop me a mail and I'll get back to you next week (last three letters of my username here @ rest of my username dot artificial intelligence). I haven't put anything online yet though sorry!