You would think after all this time, that the coordinate system would get standardized into one format!
I have been a long time user of Streets and Trips to plan routes, still use the 2013 version since it was discontinued.
Currently, I use ITN Converter to plan routes, and then output for my Sygic App on my old cell phone. Taking a looking CoPilot GPS again, too. I often run into the conversion problem, as a waypoint will be off the road in the actual GPS App.
I look forward to more information!
One of the pragmatic differences between tracks and routes is that with routes a GPS can give you turn-by-turn directions. Because it's aware of the underlying map, and is routing you along a series of connected paths (roads), it knows when you need to transition from one path to a different path.
With a track, the best you can hope for is that it will overlay a line on top of a map and show you your current position on the map. It's up to you to interpret the map and figure out which turns to take to stay on the line.
Most GPS systems allow you to record a track (a time-series of GPS coordinates) but not routes. And now that I'm thinking about it, there's really no reason they couldn't do both. Since GPS navigation software can tell what paths (roads) you're traveling, and when you transition from one to another, all they would need to do is record a waypoint for each transition (turn). With that data, the routing engine could deterministically reconstruct the route (as long as the underlying map data hasn't changed too much.)
I think it would be worth investigating if any such route-tracking software exists, and if not, to create it.
Ben Mendis, you also have to consider the case that maybe there is no underlying map data for the area the track covers. This is often the case when you get out on fire trails and forest service roads. One thought I've had is to set up "navigation" along a track simply with an arrow and a distance showing you how far you are from the next point in the track or maybe, as you say, curate a track to point to major turning points like people do with roll charts.