Buffplace is an app that allows you to create notes, drafts and templates which are commonplace in your everyday life.
You can mark a note with a colour tag to stand out from the rest.
You can lock the application or individual notes with a numbers password.
The notes get stored in the application in order to allow you to post on your twitter accounts as many times as you want or even add a mail address to send it as an email or a message.
You can program a notification that alerts you to send a note in a determinate time.