I dont know if this is a bug or intentional but it seems odd and a little annoying.
When i open a pocket query via 7zip i can drag and drop the gpx file in to a list in a folder under my library just fine, but i can't drag and drop directly on to 'internal storage' of my device.
so i have to drag drop to a temp list i created, highlight all, then drag drop to device - extra step seems a little pointless.