"HaHa! Now I have the only one!" (only in Danish).
Strange. Why would he have spoken Danish?
Try it for yourself and see (in a VM of course).
Cue the ancient NO CARRIER meme.
What actual features and improvements could they possibly have added in "8 WEEKS" since the release that they have had time to actually put through an Alpha test, Beta test, and then full release that would warrant a VERSION 5!?!
Who says they have just started doing that?
Actually, no, as a means of just sharing links to information it sucks, because you generally can't fit URLs and useful description into 140 characters--so you either have to skip describing the thing you're linking to, or you have to obfuscate the URL through a redirection service.
Oh come on. Twitter clients like Tweetdeck automatically shorten links that you paste into them.