Such a good point. I am a strong advocate of the value (positive) of twitter but I can’t deny the company’s lack of action to address the needs of its users. I don’t believe that we will live in a world with out twitter tool (or something like it) given its so powerful to gain awareness of news or to start conversation. But just because the tool is useful doesn’t mean the company will be long-term. Could Twitter have nonprofit model and be the 140 character Wikipedia. Who knows?