LongerTwits is a simple application which you can use it to tweet more than 140 characters. It uses Twitter REST API v1.1 (updated version). It works with the twitter api to send the tweet message to twitter.
Tweet as Text splits your lengthy tweets to chunks of 120 characters each (with word completion) and send to twitter.
Tweet as Image compiles the tweet message and creates a png image and send it to twitter with twitter's update with media function.
Tweet as Link adds a link(to full lengthy message) to the tweet (chunked one).
Don't even think about it. We're just sharing the love.
Mail me at firstname.lastname@example.org