Thanks for the update, Tim, and thanks to everyone who's worked on this! :)
Cristian - in answer to your point, I'm of course aware of the Labs effort, and the plan for next year is to move us towards fully supported production-level infrastructure that can handle much larger amounts of traffic, i.e. for inclusion in the official mobile apps. Some initial thoughts from Tomasz Finc (predating the Labs deployment) at:
https://www.mediawiki.org/wiki/Wikimedia_Engineering/Maps_%26_Geo_Team
Erik