HarveyJ
He is - THE CACTUS!
Charge an annual fee for a yearly premium account that allow you more than 140 characters, and some other happy horse shit.i cannot think of any solid business model in twitter..
People are so amazed with the pathetic nature of Twitters offering at the moment (which REALLY is no different from facebook status, or a hundred other things) that they'll be blown away by anything "better", and more than likely, you'll see 10% of their not inconsiderable user base shell out for it... Particularly the marketers, celebrities, and hikikomori.
[ame="http://www.youtube.com/watch?v=PN2HAroA12w"]YouTube - Twouble with Twitters[/ame]