I've been wondering, how long does it take for a change to go from an edit in OSM, to being live in a routing app using OSM data? (If such an app exists)
Editing something is usually fast, having it percolate to all users of the data is much longer (for GMaps, but I expect it's similar for OSM).
it depends: some tiles are updated very frequently for visualization. My experience is that it is no more than a hour or so to see the changes live. Therefore if somebody pulls from OSM, it will get the new version.
Editing something is usually fast, having it percolate to all users of the data is much longer (for GMaps, but I expect it's similar for OSM).