Offline tiles

[tmcw]

Unclear whether this is possible, split off from #63.

[atrawog]

I would suggest to add support for this new and shiny format called MBTiles ;-)

One approach that works fine with multiple offline OSM maps is to offer tile cache packs that you can download and put on your mobile device. With MBTiles support you could easily do the same for iD.

[tmcw]

Yep, though for that to work we'll need to use PhoneGap or similar, so this is probably a later goal of the project.

[saerdnaer]

Why is it necessary to use PhoneGap? There should be enough support for offline storage in todays mobile browsers.

[tmcw]

Not a task for iD directly.