I would like to be able to follow my friends' activities and be notified (RSS feed) when they post new activities. Similarly, I would like to be notified of new activities within a specified region (or regions) in the same way that I can on http://www.sessionlogs.com
There are lots of good things here that fit with Garmin Connect, such as being able to comment on friends' activities, and being able to add media to my own activities. (Note that I have no relationship with sessionlogs.com other than as a user).
I really like Garmin Connect and I can see it being hugely popular.
