Along with other transports in the last days and weeks Twitter was migrated to Spectrum 2 today.
With Twitter you have some more features. Instead of using the personal messages from twitter.com@twitter.jabber.hot-chilli.net you can use your personal Twitter chatroom at #twitter@twitter.jabber.hot-chilli.net.
Sending #help to the Twitter transport gives you this:
#status
==> Update your status
#timeline [username] ==> Retrieve‘s timeline; Default – own timeline
@==> Send a directed message to the user
#retweet==> Retweet the tweet having id
#follow==> Follow user
#unfollow==> Stop Following user
#mode [012] ==> Switch mode to 0(single), 1(multiple) or 2(chatroom)
#help ==> Print this help message