Compose is a new Cydia jailbreak tweak for iPhone and iPod touch, compatible with iOS 6, that adds shortcuts to Notification Center for composing new mail or messages. The style of these quick access buttons resembles the Facebook and Twitter share buttons that already exist within the pulldown notification system.
Unlike those Twitter and Facebook toggles, however, these Mail and Message buttons merely act as shortcuts to the respective apps. When you tap to compose an email, it’ll bring up a full-screen window. When you tap to compose a message, it’ll bring you right to the Messages app. You can grab the tweak for free on the ModMyi repository in Cydia.