As some of you may have already noticed the download link for the
Tweetbot for Mac alpha no longer works. Twitter’s latest API
Changes means now we have a large but finite limit on the number
of user tokens we can get for Tweetbot for Mac. We’ve been
working with Twitter over the last few days to try to work around
this limit for the duration of the beta but have been unable to
come up with solution that was acceptable to them. Because of this
we’ve decided it’s best for us to pull the alpha.
What a mess. Nice job, Dick Costolo.