I’m a big fan of tree mapping - so would be up for a mapping party or even trying to visualise tree trees by type! I think it would be an interesting app and possibly get some publicity, I have tagged some species where possible! This is hard work though for those of us who aren’t botanists.
I’m writing a thesis on whether Hadoop / other “big data” tools might be useful to analyse OSM data (https://lists.openstreetmap.org/pipermail/dev/2015-January/028227.html) so this is the sort of operation that it would be great to compare. If you have any further details about how you did it I would be much obliged.
I actually have some tracks from a year or so ago that I got through surrupticiously bringing in a data logger to the country. Mainly of Pinar del Rio province. Guess I should get around to uploading them!