The Twitter Transport was activated some days ago and since yesterday it is working as it should.
If you like to use it, just register with your Twitter username and password. Your Twitter contacts will appear in your roster. Authorize them.
To write a direct message (DM, the tweets with @username:), open the chat window of the Twitter contact and write the message (without @username:).
To write a normal message and to see what your Twitter contacts are writing, join your Twitter group chat at #email@example.com.
You cannot add new contacts to Twitter via the transport service. Please use Twitter instead.
Messages with more than 140 characters (the Twitter limit) will be split and sent in several pieces.