FastLock is a new jailbreak tweak that allows you to make a few tasks from you lock-screen as shortcuts. It is free under the BigBoss repo.
This tweak has just like the regular notification style. It is activated when double-tapping the home button. You just swipe to open the thing you want.
There are many things in the list, such as compose tweet, set alarm, write a note and much more. (Picture below)