This is a really interesting discussion, spurred by Dave Winer's posts on the need for a global namespace for dispersing microblogging away from centralised services:<p><a href="http://www.scripting.com/stories/2009/08/06/anotherBrickInTheCloud.html" rel="nofollow">http://www.scripting.com/stories/2009/08/06/anotherBrickInTh...</a><p><a href="http://www.scripting.com/stories/2009/08/07/tradingOneCentralizedNetFo.html" rel="nofollow">http://www.scripting.com/stories/2009/08/07/tradingOneCentra...</a><p><a href="http://www.scripting.com/stories/2009/08/13/looselyCoupled140charMessa.html" rel="nofollow">http://www.scripting.com/stories/2009/08/13/looselyCoupled14...</a><p>What's the best way to resolve simple usernames to feeds (and other endpoints)? .tel? webfinger? i-names? Something else? All of the above?