Add XFN profile link to user profile pages

Please allow the user to add a link back to a website which supports XFN, for example Twitter, Google Profile, Ohloh etc.

This should be very easy to do, just allow the user to enter a profile URL then link to it with rel="me nofollow"

This very small change to Launchpad ought to give a lot back to the semantic web, which technology-oriented sites should be leading. It has the added benefit of making Tim Berners-Lee smile.

In the future other content could use the rel="author" microformat to link contributions back to the user's profile, further strengthening the semantic web.