Ever want to start all over again on your Twitter account? TwitWipe might be the answer! It allows you to delete your tweets and uses oAuth.
I haven’t tried this myself. The developer is my mate @Aalaap.
This tool can come handy some day.
TwitWipe lets you delete all your tweets
Published
TEJAS PATEL'S LIFESTREAM 
I posted my phone number by accident I just wanted to email it to a friend
delete
how do i delete the tweets than ?
I wanna delete all my tweets on Twitter, how can I do this?
Did you try TwitWipe as I mentioned earlier?
anyone had success with this yet?