pageoneresults - 5:15 pm on Aug 19, 2008 (gmt 0)
All of the above questions may best be answered by the next Twitter owners. :)
In the end, Twitter will most likely be sold and become a hood ornament to another service, like Gmail is to Google (GOOG) or Hotmail is to Microsoft (MSFT). The corporate buyer won't get much ad revenue, but it will pull millions of communicating consumers closer to its own business model.