With SBG, you can generator a beep at a user-specified frequency, for a user-specified amount of time. Which is handy if you want to turn your Palm into a dog whistle or similar devices. In addition, you can make your beep continuous and choose the amount of milliseconds between each beep. Note:
Your Palm may appear to freeze when you try to stop a continuous beeping, but it hasn't actually frozen. Give it some time while it finishes the current beep in progress, otherwise you may inadvertently restart the beep loop.