Check your Android updates in your Android Market and you will see that Plume was the name picked by Touiteur users to replace the name Touiteur.
Earlier in the week we reported that Level Up Studios was being bugged by Twitter to change their name because it was so close to the trademarked “Twitter”. Rather than succomb to Twitter, Level Up put it to a community vote.
Twitter unsuccessfully tried to protect the word “Tweet”. Had they been successful Tweet Deck would have had to make a change.