Ok, did a bit of afternoon/evening hacking today and we have the start of a friends feature. If you are logged in you should now see a little under the person's avatar image on their profile page that you can click to add them as a friend. Similarly, once added as a friend you will see a
which you can use if they are no longer your BFF.
The friends get no notice of adds or deletes right now, and they don't need to agree to be your friend. The only thing this does right now is populate the "Friends" tab on your profile page with the last 10 runs from your friends. I'll probably layer some more interesting things on top of this. Ideas are welcome.
