the author of this app says:
TipU is like a sticky note pad for your handheld. You can associate alarms with each note and turn them into scheduled reminders. When the alarm goes off, the note automatically pops up and bugs you. You can even set repeating alarms for things that you want to be reminded of periodically. TipU gives you 7 different drawing tools, 7 line widths, and 39 filling patterns that you can use to compose each note on the screen.