Desktop whiteboard

I’ve had an idea for an app, and was hoping that someone else has had the idea too so i can download it.

What I want to be able to do is click on an icon in the sys tray, and get a little tool set with pens and colours so that i can draw on my desktop like a whiteboard. Then when I’ve finished I would click on the icon in the sys tray again, and the desktop would act like normal again but with the image/ reminders i sketched still there.

I want this cos I make mental notes on pieces of paper, and lose them and stuff.

Anyone seen a program that does this job?

Thanks :slight_smile: