I’ve downloaded the latest version of the Nokia Sports Tracker beta recently for my N95 (version 1.78), and was pleased to accidently happen upon a new feature. As well as tracking you by GPS, and allowing you to upload your journey to their site, for a while they’ve had the ability for you to add pictures and video taken along the trip. Now they have added a new feature, which will tag what you were listening to on the music player, and where you listened to it.
Now I agree this is not perhaps the most important or useful feature, but I feel it rates highly in the “that’s rather neat” stakes. It certainly works on the phone, but my first test of uploading put my pictures online, but not the music. So worth testing it out a bit more to see what is going on.