Maaaybe this would work, but it would have to be significantly different to post long text than to post the regular 140 characters. What makes twitter great is

Maaaybe this would work, but it would have to be significantly different to post long text than to post the regular 140 characters. What makes twitter great is the feed is easy to get through because everyone is limited in what they can add to it. I like that every tweet is essentially the same size. Simply lifting the limit on the regular tweet would be a grave mistake. Them becoming essentially a static blog hosting provider that you can link to in a tweet seems like not a terrible idea, though.