DiddleBug 2.50 Beta 4
the author of this app says:
DiddleBug is a free electronic yellow sticky-note application. You can quickly scribble information directly on the screen; then set an alarm from a pop-up list. DiddleBug also supports inserting lines, shapes and text into your messages. You can lock your important reminders to protect them. There are so many features that you will have hours of fun.