The original Twitter Facebook application puts an annoying "is twittering" at the beginning of the status message in Facebook. The developer of the Twitter app said that this would be removed once Facebook removes the "is" from their status messages. To make a long story short, Facebook removed the "is" but the twitter application still puts in "is twittering".

The solution is to use TwitterSync. Twitter Sync is another Facebook application that not only removes the "is twittering" from your status updates but goes a step further to let you use customized verbs. It also lets you create filters on your twitters.

TwitterSync is worth checking out. [Link]