Possibility to twitter about a workout with link to the mobi-site
There was a time that you could twitter from within the desktop application. Perhaps making this function available again in the online version could be a nice replacement. (yeah, I'm nagging about the twitter functionality again ;-) )
I am supporting the idea of being able to send key figures of workouts to friends that do neither use sporttracks nor have an idea of the whole functionality. Some friends send me their 'movescount'-links from time to time with higlighted information of their (of course: 'best') workouts. I am just enjoying the short overview on their (suunto-) data without having to care about any download/app-importing procedere. I have not found any similar way to show some of my sporrttracks data to non-sporttrack-users. I think you are missing out on various opportunities to get a reputation within the universe of users of other analysing tools like in my case the 'Suunto-family'. Don't know about others but sure there are many more ....