-* Show a notification when we are loading tiles or saved data
-* Display length and duration of track
-* Display movement speed
-* Display location accuracy
-* Show a better visible marker for the current location, possibly also indicating movement direction/speed
-* Smooth animations for zooming, probably using some WebGL magic
-* Use available larger/smaller tiles with resizing as loading placeholders while zooming in/out
+* See if we can secure OSM login (investigate OAuth)
+* UI improvements (non-map):
+** Show a notification when we are loading tiles or saved data
+** Display movement speed
+** Display location accuracy
+** Find better UI for track length/duration display
+* Map/track display improvements:
+** Speed up track drawing:
+*** Only draw lines that are visible
+*** Reduce lines to draw by eliminating unneeded detail (based on zoom level)
+*** Make track drawing async and hooked up to requestAnimationFrame()
+** Show a better visible marker for the current location, possibly also indicating movement direction/speed
+** Smooth animations for zooming, probably using some WebGL magic
+** Use available larger/smaller tiles with resizing as loading placeholders while zooming in/out